Add dates to CHANGELOGs

Merge branch 'development' of github.com:0xProject/0x.js into development
Merge pull request #366 from 0xProject/fix/abi_decoder_colision
2018-02-05 22:04:03 +01:00 · 2018-02-05 21:56:41 +01:00 · 2018-02-05 21:56:04 +01:00 · 2018-02-05 21:53:41 +01:00 · 2018-02-05 11:31:06 -08:00 · 2018-02-05 19:31:37 +01:00
115 changed files with 6103 additions and 6934 deletions
--- a/.editorconfig
+++ b/.editorconfig
@@ -0,0 +1,12 @@
+# EditorConfig  http://EditorConfig.org
+
+# top-most EditorConfig file
+root = true
+
+# All files
+[*]
+end_of_line = lf
+insert_final_newline = true
+charset = utf-8
+indent_style = space
+indent_size = 4
--- a/1
+++ b/1
@@ -0,0 +1 @@
+*        @abandeali1 @BMillman19 @dekz @fabioberger @LogvinovLeon @Remco
--- a/PULL_REQUEST_TEMPLATE.md
+++ b/PULL_REQUEST_TEMPLATE.md
@@ -22,12 +22,14 @@

 ## Types of changes

-<!--- What types of changes does your code introduce? Put an `x` in all the boxes that apply:
- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing functionality to change)
+<!--- What types of changes does your code introduce? Put an `x` in all the boxes that apply: -->
+
+* [ ] Bug fix (non-breaking change which fixes an issue)
+* [ ] New feature (non-breaking change which adds functionality)
+* [ ] Breaking change (fix or feature that would cause existing functionality to change)

 ## Checklist:
+
 <!--- Go over all the following points, and put an `x` in all the boxes that apply. -->

 <!--- If you're unsure about any of these, don't hesitate to ask. We're here to help! -->
--- a/README.md
+++ b/README.md
@@ -81,6 +81,12 @@ Build all packages
 yarn lerna:run build
 ```

+Continuously rebuild on exchange
+
+```bash
+yarn dev
+```
+
 ### Lint

 Lint all packages
--- a/lerna.json
+++ b/lerna.json
@@ -2,6 +2,11 @@
    "lerna": "2.5.1",
    "packages": ["packages/*"],
    "version": "independent",
+    "commands": {
+        "publish": {
+            "ignore": ["test/**/*", "*.md", "scripts", "lib", "tslint.json", "tsconfig.json"]
+        }
+    },
    "npmClient": "yarn",
    "useWorkspaces": true
 }
--- a/package.json
+++ b/package.json
@@ -3,6 +3,7 @@
    "name": "0x.js",
    "workspaces": ["packages/*"],
    "scripts": {
+        "dev": "lerna run --parallel build:watch",
        "testrpc": "testrpc -p 8545 --networkId 50 -m \"${npm_package_config_mnemonic}\"",
        "prettier": "prettier --write '**/*.{ts,tsx,json,md}' --config .prettierrc",
        "prettier:ci": "prettier --list-different '**/*.{ts,tsx,json,md}' --config .prettierrc",
--- a/packages/0x.js/CHANGELOG.md
+++ b/packages/0x.js/CHANGELOG.md
@@ -1,8 +1,13 @@
 # CHANGELOG

+## v0.32.0 - _February 5, 2018_
+
+    * Add `zeroEx.etherToken.getContractAddressIfExists` (#350)
+    * Fixed the bug causing order watcher to throw if there is an event with the same signature but different indexed fields (#366)
+
 ## v0.31.1 - _February 1, 2018_

-    * Fix the bug causing order watcher to throw is makerToken === zrx (#357)
+    * Fix the bug causing order watcher to throw if makerToken === zrx (#357)

 ## v0.31.0 - _January 30, 2018_

--- a/packages/0x.js/package.json
+++ b/packages/0x.js/package.json
@@ -1,25 +1,29 @@
 {
    "name": "0x.js",
-    "version": "0.31.0",
+    "version": "0.31.1",
    "description": "A javascript library for interacting with the 0x protocol",
-    "keywords": ["0x.js", "0xproject", "ethereum", "tokens", "exchange"],
+    "keywords": [
+        "0x.js",
+        "0xproject",
+        "ethereum",
+        "tokens",
+        "exchange"
+    ],
    "main": "lib/src/index.js",
    "types": "lib/src/index.d.ts",
    "scripts": {
+        "build:watch": "tsc -w",
        "prebuild": "run-s clean generate_contract_wrappers",
        "build": "run-p build:umd:prod build:commonjs; exit 0;",
        "docs:json": "typedoc --excludePrivate --excludeExternals --target ES5 --json $JSON_FILE_PATH $PROJECT_DIR",
-        "upload_docs_json":
-            "aws s3 cp generated_docs/index.json $S3_URL --profile 0xproject --grants read=uri=http://acs.amazonaws.com/groups/global/AllUsers --content-type application/json",
-        "generate_contract_wrappers":
-            "node ../abi-gen/lib/index.js --abis 'src/artifacts/@(Exchange|Token|TokenTransferProxy|EtherToken|TokenRegistry|DummyToken).json' --template contract_templates/contract.handlebars --partials 'contract_templates/partials/**/*.handlebars' --output src/contract_wrappers/generated",
+        "upload_docs_json": "aws s3 cp generated_docs/index.json $S3_URL --profile 0xproject --grants read=uri=http://acs.amazonaws.com/groups/global/AllUsers --content-type application/json",
+        "generate_contract_wrappers": "node ../abi-gen/lib/index.js --abis 'src/artifacts/@(Exchange|Token|TokenTransferProxy|EtherToken|TokenRegistry|DummyToken).json' --template contract_templates/contract.handlebars --partials 'contract_templates/partials/**/*.handlebars' --output src/contract_wrappers/generated",
        "lint": "tslint --project . 'src/**/*.ts' 'test/**/*.ts'",
        "test:circleci": "run-s test:coverage report_test_coverage",
        "test": "run-s clean test:commonjs",
        "test:coverage": "nyc npm run test --all",
        "report_test_coverage": "nyc report --reporter=text-lcov | coveralls",
-        "update_contracts":
-            "for i in ${npm_package_config_artifacts}; do copyfiles -u 4 ../contracts/build/contracts/$i.json ../0x.js/src/artifacts; done;",
+        "update_contracts": "for i in ${npm_package_config_artifacts}; do copyfiles -u 4 ../contracts/build/contracts/$i.json ../0x.js/src/artifacts; done;",
        "clean": "shx rm -rf _bundles lib test_temp",
        "build:umd:prod": "NODE_ENV=production webpack",
        "build:commonjs": "tsc && copyfiles -u 2 './src/artifacts/**/*.json' ./lib/src/artifacts;",
@@ -38,9 +42,9 @@
        "node": ">=6.0.0"
    },
    "devDependencies": {
-        "@0xproject/abi-gen": "^0.1.5",
-        "@0xproject/dev-utils": "^0.0.8",
-        "@0xproject/tslint-config": "^0.4.5",
+        "@0xproject/abi-gen": "^0.1.6",
+        "@0xproject/dev-utils": "^0.0.9",
+        "@0xproject/tslint-config": "^0.4.6",
        "@types/bintrees": "^1.0.2",
        "@types/jsonschema": "^1.1.1",
        "@types/lodash": "^4.14.86",
@@ -51,7 +55,7 @@
        "awesome-typescript-loader": "^3.1.3",
        "chai": "^4.0.1",
        "chai-as-promised": "^7.1.0",
-        "chai-as-promised-typescript-typings": "^0.0.7",
+        "chai-as-promised-typescript-typings": "^0.0.8",
        "chai-bignumber": "^2.0.1",
        "chai-typescript-typings": "^0.0.2",
        "copyfiles": "^1.2.0",
@@ -70,17 +74,17 @@
        "truffle-hdwallet-provider": "^0.0.3",
        "tslint": "5.8.0",
        "typedoc": "~0.8.0",
-        "typescript": "~2.6.1",
+        "typescript": "2.7.1",
        "web3-provider-engine": "^13.0.1",
-        "web3-typescript-typings": "^0.9.7",
+        "web3-typescript-typings": "^0.9.8",
        "webpack": "^3.1.0"
    },
    "dependencies": {
-        "@0xproject/assert": "^0.0.14",
-        "@0xproject/json-schemas": "^0.7.6",
-        "@0xproject/types": "^0.1.7",
-        "@0xproject/utils": "^0.2.3",
-        "@0xproject/web3-wrapper": "^0.1.8",
+        "@0xproject/assert": "^0.0.15",
+        "@0xproject/json-schemas": "^0.7.7",
+        "@0xproject/types": "^0.1.8",
+        "@0xproject/utils": "^0.2.4",
+        "@0xproject/web3-wrapper": "^0.1.9",
        "bintrees": "^1.0.2",
        "bn.js": "^4.11.8",
        "ethereumjs-abi": "^0.6.4",
--- a/packages/0x.js/src/contract_wrappers/contract_wrapper.ts
+++ b/packages/0x.js/src/contract_wrappers/contract_wrapper.ts
@@ -32,10 +32,10 @@ const CONTRACT_NAME_TO_NOT_FOUND_ERROR: {

 export class ContractWrapper {
    protected _web3Wrapper: Web3Wrapper;
-    private _networkId: number;
+    protected _networkId: number;
    private _abiDecoder?: AbiDecoder;
-    private _blockAndLogStreamerIfExists: BlockAndLogStreamer | undefined;
-    private _blockAndLogStreamInterval: NodeJS.Timer;
+    private _blockAndLogStreamerIfExists?: BlockAndLogStreamer;
+    private _blockAndLogStreamIntervalIfExists?: NodeJS.Timer;
    private _filters: { [filterToken: string]: Web3.FilterObject };
    private _filterCallbacks: {
        [filterToken: string]: EventCallback<ContractEventArgs>;
@@ -162,7 +162,7 @@ export class ContractWrapper {
        );
        const catchAllLogFilter = {};
        this._blockAndLogStreamerIfExists.addLogFilter(catchAllLogFilter);
-        this._blockAndLogStreamInterval = intervalUtils.setAsyncExcludingInterval(
+        this._blockAndLogStreamIntervalIfExists = intervalUtils.setAsyncExcludingInterval(
            this._reconcileBlockAsync.bind(this),
            constants.DEFAULT_BLOCK_POLLING_INTERVAL,
            this._onReconcileBlockError.bind(this),
@@ -191,11 +191,12 @@ export class ContractWrapper {
        }
        this._blockAndLogStreamerIfExists.unsubscribeFromOnLogAdded(this._onLogAddedSubscriptionToken as string);
        this._blockAndLogStreamerIfExists.unsubscribeFromOnLogRemoved(this._onLogRemovedSubscriptionToken as string);
-        intervalUtils.clearAsyncExcludingInterval(this._blockAndLogStreamInterval);
+        intervalUtils.clearAsyncExcludingInterval(this._blockAndLogStreamIntervalIfExists as NodeJS.Timer);
        delete this._blockAndLogStreamerIfExists;
    }
    private async _reconcileBlockAsync(): Promise<void> {
        const latestBlock = await this._web3Wrapper.getBlockAsync(BlockParamLiteral.Latest);
+        console.log('latestBlock', latestBlock.number);
        // We need to coerce to Block type cause Web3.Block includes types for mempool blocks
        if (!_.isUndefined(this._blockAndLogStreamerIfExists)) {
            // If we clear the interval while fetching the block - this._blockAndLogStreamer will be undefined
--- a/packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts
+++ b/packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts
@@ -162,6 +162,19 @@ export class EtherTokenWrapper extends ContractWrapper {
    public _unsubscribeAll(): void {
        super._unsubscribeAll();
    }
+    /**
+     * Retrieves the Ethereum address of the EtherToken contract deployed on the network
+     * that the user-passed web3 provider is connected to. If it's not Kovan, Ropsten, Rinkeby, Mainnet or TestRPC
+     * (networkId: 50), it will return undefined (e.g a private network).
+     * @returns The Ethereum address of the EtherToken contract or undefined.
+     */
+    public getContractAddressIfExists(): string | undefined {
+        const networkSpecificArtifact = artifacts.EtherTokenArtifact.networks[this._networkId];
+        const contractAddressIfExists = _.isUndefined(networkSpecificArtifact)
+            ? undefined
+            : networkSpecificArtifact.address;
+        return contractAddressIfExists;
+    }
    private _invalidateContractInstance(): void {
        this._unsubscribeAll();
        this._etherTokenContractsByAddress = {};
--- a/packages/0x.js/test/ether_token_wrapper_test.ts
+++ b/packages/0x.js/test/ether_token_wrapper_test.ts
@@ -17,7 +17,6 @@ import {
    ZeroEx,
    ZeroExError,
 } from '../src';
-import { artifacts } from '../src/artifacts';
 import { DoneCallback } from '../src/types';

 import { chaiSetup } from './utils/chai_setup';
@@ -60,7 +59,7 @@ describe('EtherTokenWrapper', () => {
        tokens = await zeroEx.tokenRegistry.getTokensAsync();
        userAddresses = await zeroEx.getAvailableAddressesAsync();
        addressWithETH = userAddresses[0];
-        wethContractAddress = (zeroEx.etherToken as any)._getContractAddress(artifacts.EtherTokenArtifact);
+        wethContractAddress = zeroEx.etherToken.getContractAddressIfExists() as string;
        depositWeiAmount = (zeroEx as any)._web3Wrapper.toWei(new BigNumber(5));
        decimalPlaces = 7;
        addressWithoutFunds = userAddresses[1];
@@ -71,6 +70,18 @@ describe('EtherTokenWrapper', () => {
    afterEach(async () => {
        await blockchainLifecycle.revertAsync();
    });
+    describe('#getContractAddressIfExists', async () => {
+        it('should return contract address if connected to a known network', () => {
+            const contractAddressIfExists = zeroEx.etherToken.getContractAddressIfExists();
+            expect(contractAddressIfExists).to.not.be.undefined();
+        });
+        it('should return undefined if connected to an unknown network', () => {
+            const UNKNOWN_NETWORK_NETWORK_ID = 10;
+            const unknownNetworkZeroEx = new ZeroEx(web3.currentProvider, { networkId: UNKNOWN_NETWORK_NETWORK_ID });
+            const contractAddressIfExists = unknownNetworkZeroEx.etherToken.getContractAddressIfExists();
+            expect(contractAddressIfExists).to.be.undefined();
+        });
+    });
    describe('#depositAsync', () => {
        it('should successfully deposit ETH and issue Wrapped ETH tokens', async () => {
            const preETHBalance = await (zeroEx as any)._web3Wrapper.getBalanceInWeiAsync(addressWithETH);
--- a/packages/abi-gen/package.json
+++ b/packages/abi-gen/package.json
@@ -1,10 +1,11 @@
 {
    "name": "@0xproject/abi-gen",
-    "version": "0.1.5",
+    "version": "0.1.6",
    "description": "Generate contract wrappers from ABI and handlebars templates",
    "main": "lib/index.js",
    "types": "lib/index.d.ts",
    "scripts": {
+        "build:watch": "tsc -w",
        "lint": "tslint --project . 'src/**/*.ts'",
        "clean": "shx rm -rf lib",
        "build": "tsc"
@@ -22,7 +23,7 @@
    },
    "homepage": "https://github.com/0xProject/0x.js/packages/abi-gen/README.md",
    "dependencies": {
-        "@0xproject/utils": "^0.2.3",
+        "@0xproject/utils": "^0.2.4",
        "chalk": "^2.3.0",
        "glob": "^7.1.2",
        "handlebars": "^4.0.11",
@@ -33,7 +34,7 @@
        "yargs": "^10.0.3"
    },
    "devDependencies": {
-        "@0xproject/tslint-config": "^0.4.5",
+        "@0xproject/tslint-config": "^0.4.6",
        "@types/glob": "^5.0.33",
        "@types/handlebars": "^4.0.36",
        "@types/mkdirp": "^0.5.1",
@@ -42,7 +43,7 @@
        "npm-run-all": "^4.1.2",
        "shx": "^0.2.2",
        "tslint": "5.8.0",
-        "typescript": "~2.6.1",
-        "web3-typescript-typings": "^0.9.7"
+        "typescript": "2.7.1",
+        "web3-typescript-typings": "^0.9.8"
    }
 }
--- a/packages/assert/package.json
+++ b/packages/assert/package.json
@@ -1,10 +1,11 @@
 {
    "name": "@0xproject/assert",
-    "version": "0.0.14",
+    "version": "0.0.15",
    "description": "Provides a standard way of performing type and schema validation across 0x projects",
    "main": "lib/src/index.js",
    "types": "lib/src/index.d.ts",
    "scripts": {
+        "build:watch": "tsc -w",
        "build": "tsc",
        "clean": "shx rm -rf _bundles lib test_temp",
        "lint": "tslint --project . 'src/**/*.ts' 'test/**/*.ts'",
@@ -23,7 +24,7 @@
    },
    "homepage": "https://github.com/0xProject/0x.js/packages/assert/README.md",
    "devDependencies": {
-        "@0xproject/tslint-config": "^0.4.5",
+        "@0xproject/tslint-config": "^0.4.6",
        "@types/lodash": "^4.14.86",
        "@types/mocha": "^2.2.42",
        "@types/valid-url": "^1.0.2",
@@ -34,11 +35,11 @@
        "npm-run-all": "^4.1.2",
        "shx": "^0.2.2",
        "tslint": "5.8.0",
-        "typescript": "~2.6.1"
+        "typescript": "2.7.1"
    },
    "dependencies": {
-        "@0xproject/json-schemas": "^0.7.6",
-        "@0xproject/utils": "^0.2.3",
+        "@0xproject/json-schemas": "^0.7.7",
+        "@0xproject/utils": "^0.2.4",
        "lodash": "^4.17.4",
        "valid-url": "^1.0.9"
    }
--- a/packages/chai-as-promised-typescript-typings/package.json
+++ b/packages/chai-as-promised-typescript-typings/package.json
@@ -1,6 +1,6 @@
 {
    "name": "chai-as-promised-typescript-typings",
-    "version": "0.0.7",
+    "version": "0.0.8",
    "description": "Typescript type definitions for chai-as-promised",
    "main": "index.d.ts",
    "types": "index.d.ts",
@@ -9,7 +9,9 @@
        "url": "git+https://github.com/0xProject/0x.js.git"
    },
    "author": "Fabio Berger",
-    "contributors": ["Leonid Logvinov <logvinov.leon@gmail.com>"],
+    "contributors": [
+        "Leonid Logvinov <logvinov.leon@gmail.com>"
+    ],
    "license": "Apache-2.0",
    "bugs": {
        "url": "https://github.com/0xProject/0x.js/issues"
--- a/packages/connect/package.json
+++ b/packages/connect/package.json
@@ -1,16 +1,22 @@
 {
    "name": "@0xproject/connect",
-    "version": "0.5.3",
+    "version": "0.5.4",
    "description": "A javascript library for interacting with the standard relayer api",
-    "keywords": ["connect", "0xproject", "ethereum", "tokens", "exchange"],
+    "keywords": [
+        "connect",
+        "0xproject",
+        "ethereum",
+        "tokens",
+        "exchange"
+    ],
    "main": "lib/src/index.js",
    "types": "lib/src/index.d.ts",
    "scripts": {
+        "build:watch": "tsc -w",
        "build": "tsc",
        "clean": "shx rm -rf _bundles lib test_temp",
        "docs:json": "typedoc --excludePrivate --excludeExternals --target ES5 --json $JSON_FILE_PATH $PROJECT_DIR",
-        "upload_docs_json":
-            "aws s3 cp generated_docs/index.json $S3_URL --profile 0xproject --grants read=uri=http://acs.amazonaws.com/groups/global/AllUsers --content-type application/json",
+        "upload_docs_json": "aws s3 cp generated_docs/index.json $S3_URL --profile 0xproject --grants read=uri=http://acs.amazonaws.com/groups/global/AllUsers --content-type application/json",
        "copy_test_fixtures": "copyfiles -u 2 './test/fixtures/**/*.json' ./lib/test/fixtures",
        "lint": "tslint --project . 'src/**/*.ts' 'test/**/*.ts'",
        "run_mocha": "mocha lib/test/**/*_test.js",
@@ -31,16 +37,16 @@
    },
    "homepage": "https://github.com/0xProject/0x.js/packages/connect/README.md",
    "dependencies": {
-        "@0xproject/assert": "^0.0.14",
-        "@0xproject/json-schemas": "^0.7.6",
-        "@0xproject/utils": "^0.2.3",
+        "@0xproject/assert": "^0.0.15",
+        "@0xproject/json-schemas": "^0.7.7",
+        "@0xproject/utils": "^0.2.4",
        "isomorphic-fetch": "^2.2.1",
        "lodash": "^4.17.4",
        "query-string": "^5.0.1",
        "websocket": "^1.0.25"
    },
    "devDependencies": {
-        "@0xproject/tslint-config": "^0.4.5",
+        "@0xproject/tslint-config": "^0.4.6",
        "@types/fetch-mock": "^5.12.1",
        "@types/lodash": "^4.14.86",
        "@types/mocha": "^2.2.42",
@@ -48,7 +54,7 @@
        "@types/websocket": "^0.0.34",
        "chai": "^4.0.1",
        "chai-as-promised": "^7.1.0",
-        "chai-as-promised-typescript-typings": "^0.0.7",
+        "chai-as-promised-typescript-typings": "^0.0.8",
        "chai-typescript-typings": "^0.0.2",
        "copyfiles": "^1.2.0",
        "dirty-chai": "^2.0.1",
@@ -58,7 +64,7 @@
        "shx": "^0.2.2",
        "tslint": "5.8.0",
        "typedoc": "~0.8.0",
-        "typescript": "~2.6.1",
-        "web3-typescript-typings": "^0.9.7"
+        "typescript": "2.7.1",
+        "web3-typescript-typings": "^0.9.8"
    }
 }
--- a/packages/contracts/README.md
+++ b/packages/contracts/README.md
@@ -38,6 +38,12 @@ yarn install
 yarn build
 ```

+or
+
+```bash
+yarn build:watch
+```
+
 ### Clean

 ```bash
--- a/packages/contracts/artifacts/DummyToken.json
+++ b/packages/contracts/artifacts/DummyToken.json
--- a/packages/contracts/artifacts/ERC20Token.json
+++ b/packages/contracts/artifacts/ERC20Token.json
@@ -0,0 +1,188 @@
+{
+    "contract_name": "ERC20Token",
+    "networks": {
+        "50": {
+            "solc_version": "0.4.18",
+            "keccak256": "0x31be5b5f8d7ae32e5ac282b8740cc7aa87cdc383cabafa02292ea6f38302efcc",
+            "optimizer_enabled": 0,
+            "abi": [
+                {
+                    "constant": false,
+                    "inputs": [
+                        {
+                            "name": "_spender",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "approve",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "bool"
+                        }
+                    ],
+                    "payable": false,
+                    "stateMutability": "nonpayable",
+                    "type": "function"
+                },
+                {
+                    "constant": true,
+                    "inputs": [],
+                    "name": "totalSupply",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "uint256"
+                        }
+                    ],
+                    "payable": false,
+                    "stateMutability": "view",
+                    "type": "function"
+                },
+                {
+                    "constant": false,
+                    "inputs": [
+                        {
+                            "name": "_from",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_to",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "transferFrom",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "bool"
+                        }
+                    ],
+                    "payable": false,
+                    "stateMutability": "nonpayable",
+                    "type": "function"
+                },
+                {
+                    "constant": true,
+                    "inputs": [
+                        {
+                            "name": "_owner",
+                            "type": "address"
+                        }
+                    ],
+                    "name": "balanceOf",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "uint256"
+                        }
+                    ],
+                    "payable": false,
+                    "stateMutability": "view",
+                    "type": "function"
+                },
+                {
+                    "constant": false,
+                    "inputs": [
+                        {
+                            "name": "_to",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "transfer",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "bool"
+                        }
+                    ],
+                    "payable": false,
+                    "stateMutability": "nonpayable",
+                    "type": "function"
+                },
+                {
+                    "constant": true,
+                    "inputs": [
+                        {
+                            "name": "_owner",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_spender",
+                            "type": "address"
+                        }
+                    ],
+                    "name": "allowance",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "uint256"
+                        }
+                    ],
+                    "payable": false,
+                    "stateMutability": "view",
+                    "type": "function"
+                },
+                {
+                    "anonymous": false,
+                    "inputs": [
+                        {
+                            "indexed": true,
+                            "name": "_from",
+                            "type": "address"
+                        },
+                        {
+                            "indexed": true,
+                            "name": "_to",
+                            "type": "address"
+                        },
+                        {
+                            "indexed": false,
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "Transfer",
+                    "type": "event"
+                },
+                {
+                    "anonymous": false,
+                    "inputs": [
+                        {
+                            "indexed": true,
+                            "name": "_owner",
+                            "type": "address"
+                        },
+                        {
+                            "indexed": true,
+                            "name": "_spender",
+                            "type": "address"
+                        },
+                        {
+                            "indexed": false,
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "Approval",
+                    "type": "event"
+                }
+            ],
+            "unlinked_binary":
+                "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",
+            "updated_at": 1517509619365
+        }
+    }
+}
--- a/packages/contracts/artifacts/ERC20Token_v1.json
+++ b/packages/contracts/artifacts/ERC20Token_v1.json
@@ -0,0 +1,182 @@
+{
+    "contract_name": "ERC20Token_v1",
+    "networks": {
+        "50": {
+            "solc_version": "0.4.11",
+            "keccak256": "0x3d710b436c430d6fe49f64b091555405360d76da6454b93faa8e213eea34a96d",
+            "optimizer_enabled": 0,
+            "abi": [
+                {
+                    "constant": false,
+                    "inputs": [
+                        {
+                            "name": "_spender",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "approve",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "bool"
+                        }
+                    ],
+                    "payable": false,
+                    "type": "function"
+                },
+                {
+                    "constant": true,
+                    "inputs": [],
+                    "name": "totalSupply",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "uint256"
+                        }
+                    ],
+                    "payable": false,
+                    "type": "function"
+                },
+                {
+                    "constant": false,
+                    "inputs": [
+                        {
+                            "name": "_from",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_to",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "transferFrom",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "bool"
+                        }
+                    ],
+                    "payable": false,
+                    "type": "function"
+                },
+                {
+                    "constant": true,
+                    "inputs": [
+                        {
+                            "name": "_owner",
+                            "type": "address"
+                        }
+                    ],
+                    "name": "balanceOf",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "uint256"
+                        }
+                    ],
+                    "payable": false,
+                    "type": "function"
+                },
+                {
+                    "constant": false,
+                    "inputs": [
+                        {
+                            "name": "_to",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "transfer",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "bool"
+                        }
+                    ],
+                    "payable": false,
+                    "type": "function"
+                },
+                {
+                    "constant": true,
+                    "inputs": [
+                        {
+                            "name": "_owner",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_spender",
+                            "type": "address"
+                        }
+                    ],
+                    "name": "allowance",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "uint256"
+                        }
+                    ],
+                    "payable": false,
+                    "type": "function"
+                },
+                {
+                    "anonymous": false,
+                    "inputs": [
+                        {
+                            "indexed": true,
+                            "name": "_from",
+                            "type": "address"
+                        },
+                        {
+                            "indexed": true,
+                            "name": "_to",
+                            "type": "address"
+                        },
+                        {
+                            "indexed": false,
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "Transfer",
+                    "type": "event"
+                },
+                {
+                    "anonymous": false,
+                    "inputs": [
+                        {
+                            "indexed": true,
+                            "name": "_owner",
+                            "type": "address"
+                        },
+                        {
+                            "indexed": true,
+                            "name": "_spender",
+                            "type": "address"
+                        },
+                        {
+                            "indexed": false,
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "Approval",
+                    "type": "event"
+                }
+            ],
+            "unlinked_binary":
+                "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",
+            "updated_at": 1517509621756
+        }
+    }
+}
--- a/packages/contracts/artifacts/Exchange.json
+++ b/packages/contracts/artifacts/Exchange.json
--- a/packages/contracts/artifacts/MaliciousToken.json
+++ b/packages/contracts/artifacts/MaliciousToken.json
--- a/packages/contracts/artifacts/Mintable.json
+++ b/packages/contracts/artifacts/Mintable.json
--- a/packages/contracts/artifacts/MultiSigWallet.json
+++ b/packages/contracts/artifacts/MultiSigWallet.json
--- a/packages/contracts/artifacts/MultiSigWalletWithTimeLock.json
+++ b/packages/contracts/artifacts/MultiSigWalletWithTimeLock.json
--- a/packages/contracts/artifacts/MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress.json
+++ b/packages/contracts/artifacts/MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress.json
--- a/packages/contracts/artifacts/Ownable.json
+++ b/packages/contracts/artifacts/Ownable.json
@@ -0,0 +1,49 @@
+{
+    "contract_name": "Ownable",
+    "networks": {
+        "50": {
+            "solc_version": "0.4.18",
+            "keccak256": "0x04e5204925913f5ff6b8193f4ab38eef9d53fc9a553f1a737924fc69db492a99",
+            "optimizer_enabled": 0,
+            "abi": [
+                {
+                    "constant": true,
+                    "inputs": [],
+                    "name": "owner",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "address"
+                        }
+                    ],
+                    "payable": false,
+                    "stateMutability": "view",
+                    "type": "function"
+                },
+                {
+                    "constant": false,
+                    "inputs": [
+                        {
+                            "name": "newOwner",
+                            "type": "address"
+                        }
+                    ],
+                    "name": "transferOwnership",
+                    "outputs": [],
+                    "payable": false,
+                    "stateMutability": "nonpayable",
+                    "type": "function"
+                },
+                {
+                    "inputs": [],
+                    "payable": false,
+                    "stateMutability": "nonpayable",
+                    "type": "constructor"
+                }
+            ],
+            "unlinked_binary":
+                "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",
+            "updated_at": 1517509621376
+        }
+    }
+}
--- a/packages/contracts/artifacts/Ownable_v1.json
+++ b/packages/contracts/artifacts/Ownable_v1.json
@@ -0,0 +1,46 @@
+{
+    "contract_name": "Ownable_v1",
+    "networks": {
+        "50": {
+            "solc_version": "0.4.11",
+            "keccak256": "0x82a6595d8d4c3c9cd44ef0fd8f77528195c35c8173970d2b119374f5d74332f4",
+            "optimizer_enabled": 0,
+            "abi": [
+                {
+                    "constant": true,
+                    "inputs": [],
+                    "name": "owner",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "address"
+                        }
+                    ],
+                    "payable": false,
+                    "type": "function"
+                },
+                {
+                    "constant": false,
+                    "inputs": [
+                        {
+                            "name": "newOwner",
+                            "type": "address"
+                        }
+                    ],
+                    "name": "transferOwnership",
+                    "outputs": [],
+                    "payable": false,
+                    "type": "function"
+                },
+                {
+                    "inputs": [],
+                    "payable": false,
+                    "type": "constructor"
+                }
+            ],
+            "unlinked_binary":
+                "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",
+            "updated_at": 1517535966230
+        }
+    }
+}
--- a/packages/contracts/artifacts/SafeMath.json
+++ b/packages/contracts/artifacts/SafeMath.json
@@ -0,0 +1,14 @@
+{
+    "contract_name": "SafeMath",
+    "networks": {
+        "50": {
+            "solc_version": "0.4.18",
+            "keccak256": "0xb1d52f567a893c86f452bd80fbb6907d992046a31b35830bc779116d23fd5549",
+            "optimizer_enabled": 0,
+            "abi": [],
+            "unlinked_binary":
+                "0x60606040523415600e57600080fd5b603580601b6000396000f3006060604052600080fd00a165627a7a723058206526256c7c1e7d1d1b2df1caefcbd76717428d6237de37aacbb5097658456b720029",
+            "updated_at": 1517509621492
+        }
+    }
+}
--- a/packages/contracts/artifacts/SafeMath_v1.json
+++ b/packages/contracts/artifacts/SafeMath_v1.json
@@ -0,0 +1,14 @@
+{
+    "contract_name": "SafeMath_v1",
+    "networks": {
+        "50": {
+            "solc_version": "0.4.11",
+            "keccak256": "0xd2c1f0518a23e63d5892f66e7b8d228c7486495b139a0f3b049f6ba7803c892d",
+            "optimizer_enabled": 0,
+            "abi": [],
+            "unlinked_binary":
+                "0x60606040523415600b57fe5b5b60338060196000396000f30060606040525bfe00a165627a7a72305820acbb91f6e4b200e929056917b84223c3fedbdeca5c35f7bf9292edf2a8ee4aa00029",
+            "updated_at": 1517509621851
+        }
+    }
+}
--- a/packages/contracts/artifacts/Token.json
+++ b/packages/contracts/artifacts/Token.json
@@ -0,0 +1,174 @@
+{
+    "contract_name": "Token",
+    "networks": {
+        "50": {
+            "solc_version": "0.4.18",
+            "keccak256": "0xe43382be55ddb9c7a28567b4cc59e35072da198e6c49a90ff1396aa8399fd61e",
+            "optimizer_enabled": 0,
+            "abi": [
+                {
+                    "constant": false,
+                    "inputs": [
+                        {
+                            "name": "_spender",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "approve",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "bool"
+                        }
+                    ],
+                    "payable": false,
+                    "stateMutability": "nonpayable",
+                    "type": "function"
+                },
+                {
+                    "constant": false,
+                    "inputs": [
+                        {
+                            "name": "_from",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_to",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "transferFrom",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "bool"
+                        }
+                    ],
+                    "payable": false,
+                    "stateMutability": "nonpayable",
+                    "type": "function"
+                },
+                {
+                    "constant": true,
+                    "inputs": [
+                        {
+                            "name": "_owner",
+                            "type": "address"
+                        }
+                    ],
+                    "name": "balanceOf",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "uint256"
+                        }
+                    ],
+                    "payable": false,
+                    "stateMutability": "view",
+                    "type": "function"
+                },
+                {
+                    "constant": false,
+                    "inputs": [
+                        {
+                            "name": "_to",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "transfer",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "bool"
+                        }
+                    ],
+                    "payable": false,
+                    "stateMutability": "nonpayable",
+                    "type": "function"
+                },
+                {
+                    "constant": true,
+                    "inputs": [
+                        {
+                            "name": "_owner",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_spender",
+                            "type": "address"
+                        }
+                    ],
+                    "name": "allowance",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "uint256"
+                        }
+                    ],
+                    "payable": false,
+                    "stateMutability": "view",
+                    "type": "function"
+                },
+                {
+                    "anonymous": false,
+                    "inputs": [
+                        {
+                            "indexed": true,
+                            "name": "_from",
+                            "type": "address"
+                        },
+                        {
+                            "indexed": true,
+                            "name": "_to",
+                            "type": "address"
+                        },
+                        {
+                            "indexed": false,
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "Transfer",
+                    "type": "event"
+                },
+                {
+                    "anonymous": false,
+                    "inputs": [
+                        {
+                            "indexed": true,
+                            "name": "_owner",
+                            "type": "address"
+                        },
+                        {
+                            "indexed": true,
+                            "name": "_spender",
+                            "type": "address"
+                        },
+                        {
+                            "indexed": false,
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "Approval",
+                    "type": "event"
+                }
+            ],
+            "unlinked_binary":
+                "0x6060604052341561000f57600080fd5b6102ac8061001e6000396000f30060606040526004361061006d576000357c0100000000000000000000000000000000000000000000000000000000900463ffffffff168063095ea7b31461007257806323b872dd146100cc57806370a0823114610145578063a9059cbb14610192578063dd62ed3e146101ec575b600080fd5b341561007d57600080fd5b6100b2600480803573ffffffffffffffffffffffffffffffffffffffff16906020019091908035906020019091905050610258565b604051808215151515815260200191505060405180910390f35b34156100d757600080fd5b61012b600480803573ffffffffffffffffffffffffffffffffffffffff1690602001909190803573ffffffffffffffffffffffffffffffffffffffff16906020019091908035906020019091905050610260565b604051808215151515815260200191505060405180910390f35b341561015057600080fd5b61017c600480803573ffffffffffffffffffffffffffffffffffffffff16906020019091905050610269565b6040518082815260200191505060405180910390f35b341561019d57600080fd5b6101d2600480803573ffffffffffffffffffffffffffffffffffffffff16906020019091908035906020019091905050610270565b604051808215151515815260200191505060405180910390f35b34156101f757600080fd5b610242600480803573ffffffffffffffffffffffffffffffffffffffff1690602001909190803573ffffffffffffffffffffffffffffffffffffffff16906020019091905050610278565b6040518082815260200191505060405180910390f35b600092915050565b60009392505050565b6000919050565b600092915050565b6000929150505600a165627a7a723058201ef98a5ecc619c89a935fee340b114a09fe44aa51aa765f4037dd3423f49d42d0029",
+            "updated_at": 1517509619496
+        }
+    }
+}
--- a/packages/contracts/artifacts/TokenRegistry.json
+++ b/packages/contracts/artifacts/TokenRegistry.json
--- a/packages/contracts/artifacts/TokenTransferProxy.json
+++ b/packages/contracts/artifacts/TokenTransferProxy.json
--- a/packages/contracts/artifacts/Token_v1.json
+++ b/packages/contracts/artifacts/Token_v1.json
@@ -0,0 +1,182 @@
+{
+    "contract_name": "Token_v1",
+    "networks": {
+        "50": {
+            "solc_version": "0.4.11",
+            "keccak256": "0x35a82bc7bc0994caa97f8ea44660b9b5e796acfe72705b5ff7ed8f2a3c47ff37",
+            "optimizer_enabled": 0,
+            "abi": [
+                {
+                    "constant": false,
+                    "inputs": [
+                        {
+                            "name": "_spender",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "approve",
+                    "outputs": [
+                        {
+                            "name": "success",
+                            "type": "bool"
+                        }
+                    ],
+                    "payable": false,
+                    "type": "function"
+                },
+                {
+                    "constant": true,
+                    "inputs": [],
+                    "name": "totalSupply",
+                    "outputs": [
+                        {
+                            "name": "supply",
+                            "type": "uint256"
+                        }
+                    ],
+                    "payable": false,
+                    "type": "function"
+                },
+                {
+                    "constant": false,
+                    "inputs": [
+                        {
+                            "name": "_from",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_to",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "transferFrom",
+                    "outputs": [
+                        {
+                            "name": "success",
+                            "type": "bool"
+                        }
+                    ],
+                    "payable": false,
+                    "type": "function"
+                },
+                {
+                    "constant": true,
+                    "inputs": [
+                        {
+                            "name": "_owner",
+                            "type": "address"
+                        }
+                    ],
+                    "name": "balanceOf",
+                    "outputs": [
+                        {
+                            "name": "balance",
+                            "type": "uint256"
+                        }
+                    ],
+                    "payable": false,
+                    "type": "function"
+                },
+                {
+                    "constant": false,
+                    "inputs": [
+                        {
+                            "name": "_to",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "transfer",
+                    "outputs": [
+                        {
+                            "name": "success",
+                            "type": "bool"
+                        }
+                    ],
+                    "payable": false,
+                    "type": "function"
+                },
+                {
+                    "constant": true,
+                    "inputs": [
+                        {
+                            "name": "_owner",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_spender",
+                            "type": "address"
+                        }
+                    ],
+                    "name": "allowance",
+                    "outputs": [
+                        {
+                            "name": "remaining",
+                            "type": "uint256"
+                        }
+                    ],
+                    "payable": false,
+                    "type": "function"
+                },
+                {
+                    "anonymous": false,
+                    "inputs": [
+                        {
+                            "indexed": true,
+                            "name": "_from",
+                            "type": "address"
+                        },
+                        {
+                            "indexed": true,
+                            "name": "_to",
+                            "type": "address"
+                        },
+                        {
+                            "indexed": false,
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "Transfer",
+                    "type": "event"
+                },
+                {
+                    "anonymous": false,
+                    "inputs": [
+                        {
+                            "indexed": true,
+                            "name": "_owner",
+                            "type": "address"
+                        },
+                        {
+                            "indexed": true,
+                            "name": "_spender",
+                            "type": "address"
+                        },
+                        {
+                            "indexed": false,
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "Approval",
+                    "type": "event"
+                }
+            ],
+            "unlinked_binary":
+                "0x6060604052341561000c57fe5b5b6102d48061001c6000396000f30060606040523615610076576000357c0100000000000000000000000000000000000000000000000000000000900463ffffffff168063095ea7b31461007857806318160ddd146100cf57806323b872dd146100f557806370a082311461016b578063a9059cbb146101b5578063dd62ed3e1461020c575bfe5b341561008057fe5b6100b5600480803573ffffffffffffffffffffffffffffffffffffffff16906020019091908035906020019091905050610275565b604051808215151515815260200191505060405180910390f35b34156100d757fe5b6100df61027e565b6040518082815260200191505060405180910390f35b34156100fd57fe5b610151600480803573ffffffffffffffffffffffffffffffffffffffff1690602001909190803573ffffffffffffffffffffffffffffffffffffffff16906020019091908035906020019091905050610284565b604051808215151515815260200191505060405180910390f35b341561017357fe5b61019f600480803573ffffffffffffffffffffffffffffffffffffffff1690602001909190505061028e565b6040518082815260200191505060405180910390f35b34156101bd57fe5b6101f2600480803573ffffffffffffffffffffffffffffffffffffffff16906020019091908035906020019091905050610296565b604051808215151515815260200191505060405180910390f35b341561021457fe5b61025f600480803573ffffffffffffffffffffffffffffffffffffffff1690602001909190803573ffffffffffffffffffffffffffffffffffffffff1690602001909190505061029f565b6040518082815260200191505060405180910390f35b60005b92915050565b60005b90565b60005b9392505050565b60005b919050565b60005b92915050565b60005b929150505600a165627a7a72305820b8fd6d6a6fe5fb53fa4968f246aad074b179498a6d15208c4b2d8be473df69420029",
+            "updated_at": 1517509621946
+        }
+    }
+}
--- a/packages/contracts/artifacts/UnlimitedAllowanceToken.json
+++ b/packages/contracts/artifacts/UnlimitedAllowanceToken.json
@@ -0,0 +1,188 @@
+{
+    "contract_name": "UnlimitedAllowanceToken",
+    "networks": {
+        "50": {
+            "solc_version": "0.4.18",
+            "keccak256": "0xfc55032f0942ce4081a9f8c3eacfa0bddf61e1fb76593c8d6514adcb97a96690",
+            "optimizer_enabled": 0,
+            "abi": [
+                {
+                    "constant": false,
+                    "inputs": [
+                        {
+                            "name": "_spender",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "approve",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "bool"
+                        }
+                    ],
+                    "payable": false,
+                    "stateMutability": "nonpayable",
+                    "type": "function"
+                },
+                {
+                    "constant": true,
+                    "inputs": [],
+                    "name": "totalSupply",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "uint256"
+                        }
+                    ],
+                    "payable": false,
+                    "stateMutability": "view",
+                    "type": "function"
+                },
+                {
+                    "constant": false,
+                    "inputs": [
+                        {
+                            "name": "_from",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_to",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "transferFrom",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "bool"
+                        }
+                    ],
+                    "payable": false,
+                    "stateMutability": "nonpayable",
+                    "type": "function"
+                },
+                {
+                    "constant": true,
+                    "inputs": [
+                        {
+                            "name": "_owner",
+                            "type": "address"
+                        }
+                    ],
+                    "name": "balanceOf",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "uint256"
+                        }
+                    ],
+                    "payable": false,
+                    "stateMutability": "view",
+                    "type": "function"
+                },
+                {
+                    "constant": false,
+                    "inputs": [
+                        {
+                            "name": "_to",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "transfer",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "bool"
+                        }
+                    ],
+                    "payable": false,
+                    "stateMutability": "nonpayable",
+                    "type": "function"
+                },
+                {
+                    "constant": true,
+                    "inputs": [
+                        {
+                            "name": "_owner",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_spender",
+                            "type": "address"
+                        }
+                    ],
+                    "name": "allowance",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "uint256"
+                        }
+                    ],
+                    "payable": false,
+                    "stateMutability": "view",
+                    "type": "function"
+                },
+                {
+                    "anonymous": false,
+                    "inputs": [
+                        {
+                            "indexed": true,
+                            "name": "_from",
+                            "type": "address"
+                        },
+                        {
+                            "indexed": true,
+                            "name": "_to",
+                            "type": "address"
+                        },
+                        {
+                            "indexed": false,
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "Transfer",
+                    "type": "event"
+                },
+                {
+                    "anonymous": false,
+                    "inputs": [
+                        {
+                            "indexed": true,
+                            "name": "_owner",
+                            "type": "address"
+                        },
+                        {
+                            "indexed": true,
+                            "name": "_spender",
+                            "type": "address"
+                        },
+                        {
+                            "indexed": false,
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "Approval",
+                    "type": "event"
+                }
+            ],
+            "unlinked_binary":
+                "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",
+            "updated_at": 1517509620184
+        }
+    }
+}
--- a/packages/contracts/artifacts/UnlimitedAllowanceToken_v1.json
+++ b/packages/contracts/artifacts/UnlimitedAllowanceToken_v1.json
@@ -0,0 +1,182 @@
+{
+    "contract_name": "UnlimitedAllowanceToken_v1",
+    "networks": {
+        "50": {
+            "solc_version": "0.4.11",
+            "keccak256": "0x3b548a72cde0786747f9bdf42901fcf51ec546ced40506335d28b0778e35d25a",
+            "optimizer_enabled": 0,
+            "abi": [
+                {
+                    "constant": false,
+                    "inputs": [
+                        {
+                            "name": "_spender",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "approve",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "bool"
+                        }
+                    ],
+                    "payable": false,
+                    "type": "function"
+                },
+                {
+                    "constant": true,
+                    "inputs": [],
+                    "name": "totalSupply",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "uint256"
+                        }
+                    ],
+                    "payable": false,
+                    "type": "function"
+                },
+                {
+                    "constant": false,
+                    "inputs": [
+                        {
+                            "name": "_from",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_to",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "transferFrom",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "bool"
+                        }
+                    ],
+                    "payable": false,
+                    "type": "function"
+                },
+                {
+                    "constant": true,
+                    "inputs": [
+                        {
+                            "name": "_owner",
+                            "type": "address"
+                        }
+                    ],
+                    "name": "balanceOf",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "uint256"
+                        }
+                    ],
+                    "payable": false,
+                    "type": "function"
+                },
+                {
+                    "constant": false,
+                    "inputs": [
+                        {
+                            "name": "_to",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "transfer",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "bool"
+                        }
+                    ],
+                    "payable": false,
+                    "type": "function"
+                },
+                {
+                    "constant": true,
+                    "inputs": [
+                        {
+                            "name": "_owner",
+                            "type": "address"
+                        },
+                        {
+                            "name": "_spender",
+                            "type": "address"
+                        }
+                    ],
+                    "name": "allowance",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "uint256"
+                        }
+                    ],
+                    "payable": false,
+                    "type": "function"
+                },
+                {
+                    "anonymous": false,
+                    "inputs": [
+                        {
+                            "indexed": true,
+                            "name": "_from",
+                            "type": "address"
+                        },
+                        {
+                            "indexed": true,
+                            "name": "_to",
+                            "type": "address"
+                        },
+                        {
+                            "indexed": false,
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "Transfer",
+                    "type": "event"
+                },
+                {
+                    "anonymous": false,
+                    "inputs": [
+                        {
+                            "indexed": true,
+                            "name": "_owner",
+                            "type": "address"
+                        },
+                        {
+                            "indexed": true,
+                            "name": "_spender",
+                            "type": "address"
+                        },
+                        {
+                            "indexed": false,
+                            "name": "_value",
+                            "type": "uint256"
+                        }
+                    ],
+                    "name": "Approval",
+                    "type": "event"
+                }
+            ],
+            "unlinked_binary":
+                "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",
+            "updated_at": 1517509622346
+        }
+    }
+}
--- a/packages/contracts/artifacts/WETH9.json
+++ b/packages/contracts/artifacts/WETH9.json
--- a/packages/contracts/artifacts/ZRXToken.json
+++ b/packages/contracts/artifacts/ZRXToken.json
--- a/packages/contracts/build/contracts/DummyToken.json
+++ b/packages/contracts/build/contracts/DummyToken.json
--- a/packages/contracts/build/contracts/EtherToken.json
+++ b/packages/contracts/build/contracts/EtherToken.json
@@ -1,394 +0,0 @@
-{
-  "contract_name": "EtherToken",
-  "abi": [
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "name",
-      "outputs": [
-        {
-          "name": "",
-          "type": "string"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "_spender",
-          "type": "address"
-        },
-        {
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "approve",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "totalSupply",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "_from",
-          "type": "address"
-        },
-        {
-          "name": "_to",
-          "type": "address"
-        },
-        {
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "transferFrom",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "amount",
-          "type": "uint256"
-        }
-      ],
-      "name": "withdraw",
-      "outputs": [],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "decimals",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint8"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "name": "_owner",
-          "type": "address"
-        }
-      ],
-      "name": "balanceOf",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "symbol",
-      "outputs": [
-        {
-          "name": "",
-          "type": "string"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "_to",
-          "type": "address"
-        },
-        {
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "transfer",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [],
-      "name": "deposit",
-      "outputs": [],
-      "payable": true,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "name": "_owner",
-          "type": "address"
-        },
-        {
-          "name": "_spender",
-          "type": "address"
-        }
-      ],
-      "name": "allowance",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "payable": true,
-      "type": "fallback"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "name": "_from",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "name": "_to",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "Transfer",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "name": "_owner",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "name": "_spender",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "Approval",
-      "type": "event"
-    }
-  ],
-  "unlinked_binary": "0x6060604052341561000c57fe5b5b6107598061001c6000396000f300606060405236156100935763ffffffff60e060020a60003504166306fdde0381146100a4578063095ea7b31461013457806318160ddd1461016757806323b872dd146101895780632e1a7d4d146101c2578063313ce567146101d757806370a08231146101fd57806395d89b411461022b578063a9059cbb146102bb578063d0e30db0146102ee578063dd62ed3e146102f8575b6100a25b61009f61032c565b5b565b005b34156100ac57fe5b6100b461037b565b6040805160208082528351818301528351919283929083019185019080838382156100fa575b8051825260208311156100fa57601f1990920191602091820191016100da565b505050905090810190601f1680156101265780820380516001836020036101000a031916815260200191505b509250505060405180910390f35b341561013c57fe5b610153600160a060020a03600435166024356103a3565b604080519115158252519081900360200190f35b341561016f57fe5b61017761040e565b60408051918252519081900360200190f35b341561019157fe5b610153600160a060020a0360043581169060243516604435610414565b604080519115158252519081900360200190f35b34156101ca57fe5b6100a2600435610537565b005b34156101df57fe5b6101e76105b8565b6040805160ff9092168252519081900360200190f35b341561020557fe5b610177600160a060020a03600435166105bd565b60408051918252519081900360200190f35b341561023357fe5b6100b46105dc565b6040805160208082528351818301528351919283929083019185019080838382156100fa575b8051825260208311156100fa57601f1990920191602091820191016100da565b505050905090810190601f1680156101265780820380516001836020036101000a031916815260200191505b509250505060405180910390f35b34156102c357fe5b610153600160a060020a03600435166024356105fd565b604080519115158252519081900360200190f35b6100a261032c565b005b341561030057fe5b610177600160a060020a03600435811690602435166106af565b60408051918252519081900360200190f35b600160a060020a03331660009081526020819052604090205461034f90346106dc565b600160a060020a03331660009081526020819052604090205560025461037590346106dc565b6002555b565b60408051808201909152600b815260a960020a6a22ba3432b9102a37b5b2b702602082015281565b600160a060020a03338116600081815260016020908152604080832094871680845294825280832086905580518681529051929493927f8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925929181900390910190a35060015b92915050565b60025481565b600160a060020a03808416600081815260016020908152604080832033909516835293815283822054928252819052918220548390108015906104575750828110155b801561047d5750600160a060020a03841660009081526020819052604090205483810110155b1561052957600160a060020a03808516600090815260208190526040808220805487019055918716815220805484900390556000198110156104e757600160a060020a03808616600090815260016020908152604080832033909416835292905220805484900390555b83600160a060020a031685600160a060020a031660008051602061070e833981519152856040518082815260200191505060405180910390a36001915061052e565b600091505b5b509392505050565b600160a060020a03331660009081526020819052604090205461055a90826106f6565b600160a060020a03331660009081526020819052604090205560025461058090826106f6565b600255604051600160a060020a0333169082156108fc029083906000818181858888f1935050505015156105b45760006000fd5b5b50565b601281565b600160a060020a0381166000908152602081905260409020545b919050565b604080518082019091526004815260e360020a630ae8aa8902602082015281565b600160a060020a0333166000908152602081905260408120548290108015906106405750600160a060020a03831660009081526020819052604090205482810110155b156106a057600160a060020a03338116600081815260208181526040808320805488900390559387168083529184902080548701905583518681529351919360008051602061070e833981519152929081900390910190a3506001610408565b506000610408565b5b92915050565b600160a060020a038083166000908152600160209081526040808320938516835292905220545b92915050565b6000828201838110156106eb57fe5b8091505b5092915050565b60008282111561070257fe5b508082035b929150505600ddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3efa165627a7a7230582036b62e75991ca24307fbb7333dc79a1493b9acb6b3e146e3c707708262cfbe430029",
-  "networks": {
-    "1": {
-      "links": {},
-      "events": {
-        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "name": "_from",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "name": "_to",
-              "type": "address"
-            },
-            {
-              "indexed": false,
-              "name": "_value",
-              "type": "uint256"
-            }
-          ],
-          "name": "Transfer",
-          "type": "event"
-        },
-        "0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "name": "_owner",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "name": "_spender",
-              "type": "address"
-            },
-            {
-              "indexed": false,
-              "name": "_value",
-              "type": "uint256"
-            }
-          ],
-          "name": "Approval",
-          "type": "event"
-        }
-      },
-      "updated_at": 1502488087000,
-      "address": "0x2956356cd2a2bf3202f771f50d3d14a367b48070"
-    },
-    "42": {
-      "links": {},
-      "events": {
-        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "name": "_from",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "name": "_to",
-              "type": "address"
-            },
-            {
-              "indexed": false,
-              "name": "_value",
-              "type": "uint256"
-            }
-          ],
-          "name": "Transfer",
-          "type": "event"
-        },
-        "0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "name": "_owner",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "name": "_spender",
-              "type": "address"
-            },
-            {
-              "indexed": false,
-              "name": "_value",
-              "type": "uint256"
-            }
-          ],
-          "name": "Approval",
-          "type": "event"
-        }
-      },
-      "updated_at": 1502391794392,
-      "address": "0x05d090b51c40b020eab3bfcb6a2dff130df22e9c"
-    },
-    "50": {
-      "links": {},
-      "events": {
-        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "name": "_from",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "name": "_to",
-              "type": "address"
-            },
-            {
-              "indexed": false,
-              "name": "_value",
-              "type": "uint256"
-            }
-          ],
-          "name": "Transfer",
-          "type": "event"
-        },
-        "0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "name": "_owner",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "name": "_spender",
-              "type": "address"
-            },
-            {
-              "indexed": false,
-              "name": "_value",
-              "type": "uint256"
-            }
-          ],
-          "name": "Approval",
-          "type": "event"
-        }
-      },
-      "updated_at": 1513088404209,
-      "address": "0x48bacb9266a570d521063ef5dd96e61686dbe788"
-    }
-  },
-  "schema_version": "0.0.5",
-  "updated_at": 1513088404209
-}
--- a/packages/contracts/build/contracts/Exchange.json
+++ b/packages/contracts/build/contracts/Exchange.json
--- a/packages/contracts/build/contracts/MaliciousToken.json
+++ b/packages/contracts/build/contracts/MaliciousToken.json
@@ -1,227 +0,0 @@
-{
-  "contract_name": "MaliciousToken",
-  "abi": [
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "_spender",
-          "type": "address"
-        },
-        {
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "approve",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "totalSupply",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "_from",
-          "type": "address"
-        },
-        {
-          "name": "_to",
-          "type": "address"
-        },
-        {
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "transferFrom",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "name": "_owner",
-          "type": "address"
-        }
-      ],
-      "name": "balanceOf",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "_to",
-          "type": "address"
-        },
-        {
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "transfer",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "name": "_owner",
-          "type": "address"
-        },
-        {
-          "name": "_spender",
-          "type": "address"
-        }
-      ],
-      "name": "allowance",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "name": "_from",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "name": "_to",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "Transfer",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "name": "_owner",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "name": "_spender",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "Approval",
-      "type": "event"
-    }
-  ],
-  "unlinked_binary": "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",
-  "networks": {
-    "50": {
-      "links": {},
-      "events": {
-        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "name": "_from",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "name": "_to",
-              "type": "address"
-            },
-            {
-              "indexed": false,
-              "name": "_value",
-              "type": "uint256"
-            }
-          ],
-          "name": "Transfer",
-          "type": "event"
-        },
-        "0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "name": "_owner",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "name": "_spender",
-              "type": "address"
-            },
-            {
-              "indexed": false,
-              "name": "_value",
-              "type": "uint256"
-            }
-          ],
-          "name": "Approval",
-          "type": "event"
-        }
-      },
-      "updated_at": 1513088404210
-    }
-  },
-  "schema_version": "0.0.5",
-  "updated_at": 1513088404210
-}
--- a/packages/contracts/build/contracts/Migrations.json
+++ b/packages/contracts/build/contracts/Migrations.json
@@ -1,72 +0,0 @@
-{
-  "contract_name": "Migrations",
-  "abi": [
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "new_address",
-          "type": "address"
-        }
-      ],
-      "name": "upgrade",
-      "outputs": [],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "last_completed_migration",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "owner",
-      "outputs": [
-        {
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "completed",
-          "type": "uint256"
-        }
-      ],
-      "name": "setCompleted",
-      "outputs": [],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "inputs": [],
-      "payable": false,
-      "type": "constructor"
-    }
-  ],
-  "unlinked_binary": "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",
-  "networks": {
-    "50": {
-      "links": {},
-      "events": {},
-      "updated_at": 1513088404203
-    }
-  },
-  "schema_version": "0.0.5",
-  "updated_at": 1513088404203
-}
--- a/packages/contracts/build/contracts/Mintable.json
+++ b/packages/contracts/build/contracts/Mintable.json
@@ -1,189 +0,0 @@
-{
-  "contract_name": "Mintable",
-  "abi": [
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "_spender",
-          "type": "address"
-        },
-        {
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "approve",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "totalSupply",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "_from",
-          "type": "address"
-        },
-        {
-          "name": "_to",
-          "type": "address"
-        },
-        {
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "transferFrom",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "name": "_owner",
-          "type": "address"
-        }
-      ],
-      "name": "balanceOf",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "mint",
-      "outputs": [],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "_to",
-          "type": "address"
-        },
-        {
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "transfer",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "name": "_owner",
-          "type": "address"
-        },
-        {
-          "name": "_spender",
-          "type": "address"
-        }
-      ],
-      "name": "allowance",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "name": "_from",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "name": "_to",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "Transfer",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "name": "_owner",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "name": "_spender",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "Approval",
-      "type": "event"
-    }
-  ],
-  "unlinked_binary": "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",
-  "networks": {},
-  "schema_version": "0.0.5",
-  "updated_at": 1513088402049
-}
--- a/packages/contracts/build/contracts/MultiSigWallet.json
+++ b/packages/contracts/build/contracts/MultiSigWallet.json
--- a/packages/contracts/build/contracts/MultiSigWalletWithTimeLock.json
+++ b/packages/contracts/build/contracts/MultiSigWalletWithTimeLock.json
--- a/packages/contracts/build/contracts/MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress.json
+++ b/packages/contracts/build/contracts/MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress.json
--- a/packages/contracts/build/contracts/Ownable.json
+++ b/packages/contracts/build/contracts/Ownable.json
@@ -1,40 +0,0 @@
-{
-  "contract_name": "Ownable",
-  "abi": [
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "owner",
-      "outputs": [
-        {
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "newOwner",
-          "type": "address"
-        }
-      ],
-      "name": "transferOwnership",
-      "outputs": [],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "inputs": [],
-      "payable": false,
-      "type": "constructor"
-    }
-  ],
-  "unlinked_binary": "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",
-  "networks": {},
-  "schema_version": "0.0.5",
-  "updated_at": 1513088402049
-}
--- a/packages/contracts/build/contracts/SafeMath.json
+++ b/packages/contracts/build/contracts/SafeMath.json
@@ -1,8 +0,0 @@
-{
-  "contract_name": "SafeMath",
-  "abi": [],
-  "unlinked_binary": "0x60606040523415600b57fe5b5b60338060196000396000f30060606040525bfe00a165627a7a72305820becdc80300a4dbf834bb9ab115616eb459f82b51a9133d360eb1e6e5402072eb0029",
-  "networks": {},
-  "schema_version": "0.0.5",
-  "updated_at": 1513088402049
-}
--- a/packages/contracts/build/contracts/StandardToken.json
+++ b/packages/contracts/build/contracts/StandardToken.json
@@ -1,176 +0,0 @@
-{
-  "contract_name": "StandardToken",
-  "abi": [
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "_spender",
-          "type": "address"
-        },
-        {
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "approve",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "totalSupply",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "_from",
-          "type": "address"
-        },
-        {
-          "name": "_to",
-          "type": "address"
-        },
-        {
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "transferFrom",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "name": "_owner",
-          "type": "address"
-        }
-      ],
-      "name": "balanceOf",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "_to",
-          "type": "address"
-        },
-        {
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "transfer",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "name": "_owner",
-          "type": "address"
-        },
-        {
-          "name": "_spender",
-          "type": "address"
-        }
-      ],
-      "name": "allowance",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "name": "_from",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "name": "_to",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "Transfer",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "name": "_owner",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "name": "_spender",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "Approval",
-      "type": "event"
-    }
-  ],
-  "unlinked_binary": "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",
-  "networks": {},
-  "schema_version": "0.0.5",
-  "updated_at": 1513088402049
-}
--- a/packages/contracts/build/contracts/Token.json
+++ b/packages/contracts/build/contracts/Token.json
@@ -1,176 +0,0 @@
-{
-  "contract_name": "Token",
-  "abi": [
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "_spender",
-          "type": "address"
-        },
-        {
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "approve",
-      "outputs": [
-        {
-          "name": "success",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "totalSupply",
-      "outputs": [
-        {
-          "name": "supply",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "_from",
-          "type": "address"
-        },
-        {
-          "name": "_to",
-          "type": "address"
-        },
-        {
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "transferFrom",
-      "outputs": [
-        {
-          "name": "success",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "name": "_owner",
-          "type": "address"
-        }
-      ],
-      "name": "balanceOf",
-      "outputs": [
-        {
-          "name": "balance",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "_to",
-          "type": "address"
-        },
-        {
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "transfer",
-      "outputs": [
-        {
-          "name": "success",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "name": "_owner",
-          "type": "address"
-        },
-        {
-          "name": "_spender",
-          "type": "address"
-        }
-      ],
-      "name": "allowance",
-      "outputs": [
-        {
-          "name": "remaining",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "name": "_from",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "name": "_to",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "Transfer",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "name": "_owner",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "name": "_spender",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "Approval",
-      "type": "event"
-    }
-  ],
-  "unlinked_binary": "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",
-  "networks": {},
-  "schema_version": "0.0.5",
-  "updated_at": 1513088402049
-}
--- a/packages/contracts/build/contracts/TokenRegistry.json
+++ b/packages/contracts/build/contracts/TokenRegistry.json
--- a/packages/contracts/build/contracts/TokenTransferProxy.json
+++ b/packages/contracts/build/contracts/TokenTransferProxy.json
@@ -1,298 +0,0 @@
-{
-  "contract_name": "TokenTransferProxy",
-  "abi": [
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "token",
-          "type": "address"
-        },
-        {
-          "name": "from",
-          "type": "address"
-        },
-        {
-          "name": "to",
-          "type": "address"
-        },
-        {
-          "name": "value",
-          "type": "uint256"
-        }
-      ],
-      "name": "transferFrom",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "target",
-          "type": "address"
-        }
-      ],
-      "name": "addAuthorizedAddress",
-      "outputs": [],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "name": "authorities",
-      "outputs": [
-        {
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "target",
-          "type": "address"
-        }
-      ],
-      "name": "removeAuthorizedAddress",
-      "outputs": [],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "owner",
-      "outputs": [
-        {
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "name": "authorized",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "getAuthorizedAddresses",
-      "outputs": [
-        {
-          "name": "",
-          "type": "address[]"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "newOwner",
-          "type": "address"
-        }
-      ],
-      "name": "transferOwnership",
-      "outputs": [],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "name": "target",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "name": "caller",
-          "type": "address"
-        }
-      ],
-      "name": "LogAuthorizedAddressAdded",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "name": "target",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "name": "caller",
-          "type": "address"
-        }
-      ],
-      "name": "LogAuthorizedAddressRemoved",
-      "type": "event"
-    }
-  ],
-  "unlinked_binary": "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",
-  "networks": {
-    "1": {
-      "links": {},
-      "events": {
-        "0x94bb87f4c15c4587ff559a7584006fa01ddf9299359be6b512b94527aa961aca": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "name": "target",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "name": "caller",
-              "type": "address"
-            }
-          ],
-          "name": "LogAuthorizedAddressAdded",
-          "type": "event"
-        },
-        "0xf5b347a1e40749dd050f5f07fbdbeb7e3efa9756903044dd29401fd1d4bb4a1c": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "name": "target",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "name": "caller",
-              "type": "address"
-            }
-          ],
-          "name": "LogAuthorizedAddressRemoved",
-          "type": "event"
-        }
-      },
-      "updated_at": 1502478966000,
-      "address": "0x8da0d80f5007ef1e431dd2127178d224e32c2ef4"
-    },
-    "42": {
-      "links": {},
-      "events": {
-        "0x94bb87f4c15c4587ff559a7584006fa01ddf9299359be6b512b94527aa961aca": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "name": "target",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "name": "caller",
-              "type": "address"
-            }
-          ],
-          "name": "LogAuthorizedAddressAdded",
-          "type": "event"
-        },
-        "0xf5b347a1e40749dd050f5f07fbdbeb7e3efa9756903044dd29401fd1d4bb4a1c": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "name": "target",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "name": "caller",
-              "type": "address"
-            }
-          ],
-          "name": "LogAuthorizedAddressRemoved",
-          "type": "event"
-        }
-      },
-      "updated_at": 1502391794384,
-      "address": "0x087Eed4Bc1ee3DE49BeFbd66C662B434B15d49d4"
-    },
-    "50": {
-      "links": {},
-      "events": {
-        "0x94bb87f4c15c4587ff559a7584006fa01ddf9299359be6b512b94527aa961aca": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "name": "target",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "name": "caller",
-              "type": "address"
-            }
-          ],
-          "name": "LogAuthorizedAddressAdded",
-          "type": "event"
-        },
-        "0xf5b347a1e40749dd050f5f07fbdbeb7e3efa9756903044dd29401fd1d4bb4a1c": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "name": "target",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "name": "caller",
-              "type": "address"
-            }
-          ],
-          "name": "LogAuthorizedAddressRemoved",
-          "type": "event"
-        }
-      },
-      "updated_at": 1513088404202,
-      "address": "0x871dd7c2b4b25e1aa18728e9d5f2af4c4e431f5c"
-    }
-  },
-  "schema_version": "0.0.5",
-  "updated_at": 1513088404202
-}
--- a/packages/contracts/build/contracts/ZRXToken.json
+++ b/packages/contracts/build/contracts/ZRXToken.json
@@ -1,373 +0,0 @@
-{
-  "contract_name": "ZRXToken",
-  "abi": [
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "name",
-      "outputs": [
-        {
-          "name": "",
-          "type": "string"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "_spender",
-          "type": "address"
-        },
-        {
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "approve",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "totalSupply",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "_from",
-          "type": "address"
-        },
-        {
-          "name": "_to",
-          "type": "address"
-        },
-        {
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "transferFrom",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "decimals",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint8"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "name": "_owner",
-          "type": "address"
-        }
-      ],
-      "name": "balanceOf",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [],
-      "name": "symbol",
-      "outputs": [
-        {
-          "name": "",
-          "type": "string"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "_to",
-          "type": "address"
-        },
-        {
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "transfer",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "constant": true,
-      "inputs": [
-        {
-          "name": "_owner",
-          "type": "address"
-        },
-        {
-          "name": "_spender",
-          "type": "address"
-        }
-      ],
-      "name": "allowance",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "payable": false,
-      "type": "function"
-    },
-    {
-      "inputs": [],
-      "payable": false,
-      "type": "constructor"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "name": "_from",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "name": "_to",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "Transfer",
-      "type": "event"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "name": "_owner",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "name": "_spender",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "name": "_value",
-          "type": "uint256"
-        }
-      ],
-      "name": "Approval",
-      "type": "event"
-    }
-  ],
-  "unlinked_binary": "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",
-  "networks": {
-    "1": {
-      "links": {},
-      "events": {
-        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "name": "_from",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "name": "_to",
-              "type": "address"
-            },
-            {
-              "indexed": false,
-              "name": "_value",
-              "type": "uint256"
-            }
-          ],
-          "name": "Transfer",
-          "type": "event"
-        },
-        "0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "name": "_owner",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "name": "_spender",
-              "type": "address"
-            },
-            {
-              "indexed": false,
-              "name": "_value",
-              "type": "uint256"
-            }
-          ],
-          "name": "Approval",
-          "type": "event"
-        }
-      },
-      "updated_at": 1502477311000,
-      "address": "0xe41d2489571d322189246dafa5ebde1f4699f498"
-    },
-    "42": {
-      "links": {},
-      "events": {
-        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "name": "_from",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "name": "_to",
-              "type": "address"
-            },
-            {
-              "indexed": false,
-              "name": "_value",
-              "type": "uint256"
-            }
-          ],
-          "name": "Transfer",
-          "type": "event"
-        },
-        "0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "name": "_owner",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "name": "_spender",
-              "type": "address"
-            },
-            {
-              "indexed": false,
-              "name": "_value",
-              "type": "uint256"
-            }
-          ],
-          "name": "Approval",
-          "type": "event"
-        }
-      },
-      "updated_at": 1502391794391,
-      "address": "0x6ff6c0ff1d68b964901f986d4c9fa3ac68346570"
-    },
-    "50": {
-      "links": {},
-      "events": {
-        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "name": "_from",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "name": "_to",
-              "type": "address"
-            },
-            {
-              "indexed": false,
-              "name": "_value",
-              "type": "uint256"
-            }
-          ],
-          "name": "Transfer",
-          "type": "event"
-        },
-        "0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "name": "_owner",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "name": "_spender",
-              "type": "address"
-            },
-            {
-              "indexed": false,
-              "name": "_value",
-              "type": "uint256"
-            }
-          ],
-          "name": "Approval",
-          "type": "event"
-        }
-      },
-      "updated_at": 1513088404207
-    }
-  },
-  "schema_version": "0.0.5",
-  "updated_at": 1513088404207
-}
--- a/packages/contracts/contracts/test/DummyToken_v2.sol
+++ b/packages/contracts/contracts/test/DummyToken_v2.sol
@@ -1,38 +0,0 @@
-pragma solidity 0.4.18;
-
-import "./Mintable_v2.sol";
-import "./../utils/Ownable_v2.sol";
-
-contract DummyToken_v2 is Mintable_v2, Ownable_v2 {
-    string public name;
-    string public symbol;
-    uint public decimals;
-
-    function DummyToken_v2(
-        string _name,
-        string _symbol,
-        uint _decimals,
-        uint _totalSupply)
-        public
-    {
-        name = _name;
-        symbol = _symbol;
-        decimals = _decimals;
-        totalSupply = _totalSupply;
-        balances[msg.sender] = _totalSupply;
-    }
-
-    function setBalance(address _target, uint _value) 
-        public
-        onlyOwner 
-    {
-        uint currBalance = balanceOf(_target);
-        if (_value < currBalance) {
-            totalSupply = safeSub(totalSupply, safeSub(currBalance, _value));
-        } else {
-            totalSupply = safeAdd(totalSupply, safeSub(_value, currBalance));
-        }
-        balances[_target] = _value;
-    }
-}
-
--- a/packages/contracts/contracts/test/Mintable_v2.sol
+++ b/packages/contracts/contracts/test/Mintable_v2.sol
@@ -1,19 +0,0 @@
-pragma solidity 0.4.18;
-
-import "./../tokens/UnlimitedAllowanceToken_v2.sol";
-import "./../utils/SafeMath_v2.sol";
-
-/*
- * Mintable
- * Base contract that creates a mintable UnlimitedAllowanceToken
- */
-contract Mintable_v2 is UnlimitedAllowanceToken_v2, SafeMath_v2 {
-    function mint(uint _value) 
-        public
-    {
-        require(_value <= 100000000000000000000);
-        balances[msg.sender] = safeAdd(_value, balances[msg.sender]);
-        totalSupply = safeAdd(totalSupply, _value);
-    }
-}
-
--- a/packages/contracts/contracts/utils/SafeMath.sol
+++ b/packages/contracts/contracts/utils/SafeMath.sol
@@ -1,74 +0,0 @@
-pragma solidity ^0.4.11;
-
-contract SafeMath {
-    function safeMul(uint a, uint b)
-        internal
-        constant 
-        returns (uint256) 
-    {
-        uint c = a * b;
-        assert(a == 0 || c / a == b);
-        return c;
-    }
-
-    function safeDiv(uint a, uint b)
-        internal 
-        constant 
-        returns (uint256) 
-    {
-        uint c = a / b;
-        return c;
-    }
-
-    function safeSub(uint a, uint b) 
-        internal 
-        constant 
-        returns (uint256) 
-    {
-        assert(b <= a);
-        return a - b;
-    }
-
-    function safeAdd(uint a, uint b) 
-        internal 
-        constant 
-        returns (uint256) 
-    {
-        uint c = a + b;
-        assert(c >= a);
-        return c;
-    }
-
-    function max64(uint64 a, uint64 b) 
-        internal 
-        constant 
-        returns (uint64) 
-    {
-        return a >= b ? a : b;
-    }
-
-    function min64(uint64 a, uint64 b) 
-        internal 
-        constant 
-        returns (uint64) 
-    {
-        return a < b ? a : b;
-    }
-
-    function max256(uint256 a, uint256 b) 
-        internal 
-        constant 
-        returns (uint256) 
-    {
-        return a >= b ? a : b;
-    }
-
-    function min256(uint256 a, uint256 b) 
-        internal 
-        constant 
-        returns (uint256) 
-    {
-        return a < b ? a : b;
-    }
-}
-
--- a/packages/contracts/package.json
+++ b/packages/contracts/package.json
@@ -1,20 +1,20 @@
 {
    "private": true,
    "name": "contracts",
-    "version": "2.1.7",
+    "version": "2.1.8",
    "description": "Smart contract components of 0x protocol",
    "main": "index.js",
    "directories": {
        "test": "test"
    },
    "scripts": {
+        "build:watch": "tsc -w",
        "prebuild": "run-s clean copy_artifacts",
-        "copy_artifacts": "copyfiles './build/**/*' './deploy/solc/solc_bin/*' './deploy/test/fixtures/contracts/**/*' './deploy/test/fixtures/contracts/*' ./lib",
+        "copy_artifacts": "copyfiles './artifacts/**/*' ./lib",
        "build": "tsc",
        "test": "run-s compile build run_mocha",
        "run_mocha": "mocha 'lib/test/**/*.js' --timeout 10000 --bail --exit",
-        "compile:comment":
-            "Yarn workspaces do not link binaries correctly so we need to reference them directly https://github.com/yarnpkg/yarn/issues/3846",
+        "compile:comment": "Yarn workspaces do not link binaries correctly so we need to reference them directly https://github.com/yarnpkg/yarn/issues/3846",
        "compile": "node ../deployer/lib/src/cli.js compile",
        "clean": "rm -rf ./lib",
        "migrate": "node ../deployer/lib/src/cli.js migrate",
@@ -32,9 +32,9 @@
    },
    "homepage": "https://github.com/0xProject/0x.js/packages/contracts/README.md",
    "devDependencies": {
-        "@0xproject/dev-utils": "^0.0.8",
-        "@0xproject/tslint-config": "^0.4.5",
-        "@0xproject/types": "^0.1.7",
+        "@0xproject/dev-utils": "^0.0.9",
+        "@0xproject/tslint-config": "^0.4.6",
+        "@0xproject/types": "^0.1.8",
        "@types/bluebird": "^3.5.3",
        "@types/lodash": "^4.14.86",
        "@types/node": "^8.0.53",
@@ -42,7 +42,7 @@
        "@types/yargs": "^10.0.0",
        "chai": "^4.0.1",
        "chai-as-promised": "^7.1.0",
-        "chai-as-promised-typescript-typings": "^0.0.7",
+        "chai-as-promised-typescript-typings": "^0.0.8",
        "chai-bignumber": "^2.0.1",
        "chai-typescript-typings": "^0.0.2",
        "copyfiles": "^1.2.0",
@@ -53,16 +53,16 @@
        "tslint": "5.8.0",
        "types-bn": "^0.0.1",
        "types-ethereumjs-util": "0xproject/types-ethereumjs-util",
-        "typescript": "~2.6.1",
-        "web3-typescript-typings": "^0.9.7",
+        "typescript": "2.7.1",
+        "web3-typescript-typings": "^0.9.8",
        "yargs": "^10.0.3"
    },
    "dependencies": {
-        "0x.js": "^0.31.0",
-        "@0xproject/deployer": "^0.0.4",
-        "@0xproject/json-schemas": "^0.7.6",
-        "@0xproject/utils": "^0.2.3",
-        "@0xproject/web3-wrapper": "^0.1.8",
+        "0x.js": "^0.31.1",
+        "@0xproject/deployer": "^0.0.5",
+        "@0xproject/json-schemas": "^0.7.7",
+        "@0xproject/utils": "^0.2.4",
+        "@0xproject/web3-wrapper": "^0.1.9",
        "bluebird": "^3.5.0",
        "bn.js": "^4.11.8",
        "ethereumjs-abi": "^0.6.4",
--- a/packages/contracts/src/current/multisig/MultiSigWallet/MultiSigWallet.sol
+++ b/packages/contracts/src/current/multisig/MultiSigWallet/MultiSigWallet.sol
@@ -1,4 +1,4 @@
-pragma solidity ^0.4.11;
+pragma solidity ^0.4.10;

 /// @title Multisignature wallet - Allows multiple parties to agree on transactions before execution.
 /// @author Stefan George - <stefan.george@consensys.net>
--- a/packages/contracts/src/current/multisig/MultiSigWalletWithTimeLock/MultiSigWalletWithTimeLock.sol
+++ b/packages/contracts/src/current/multisig/MultiSigWalletWithTimeLock/MultiSigWalletWithTimeLock.sol
@@ -16,9 +16,9 @@

 */

-pragma solidity ^0.4.11;
+pragma solidity ^0.4.10;

-import "./MultiSigWallet.sol";
+import { MultiSigWallet } from "../MultiSigWallet/MultiSigWallet.sol";

 /// @title Multisignature wallet with time lock- Allows multiple parties to execute a transaction after a time lock has passed.
 /// @author Amir Bandeali - <amir@0xProject.com>
@@ -130,4 +130,3 @@ contract MultiSigWalletWithTimeLock is MultiSigWallet {
        ConfirmationTimeSet(transactionId, confirmationTime);
    }
 }
-
--- a/packages/contracts/src/current/multisig/MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress/MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress.sol
+++ b/packages/contracts/src/current/multisig/MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress/MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress.sol
@@ -16,9 +16,9 @@

 */

-pragma solidity ^0.4.11;
+pragma solidity ^0.4.10;

-import "./MultiSigWalletWithTimeLock.sol";
+import { MultiSigWalletWithTimeLock } from "../MultiSigWalletWithTimeLock/MultiSigWalletWithTimeLock.sol";

 contract MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress is MultiSigWalletWithTimeLock {

@@ -80,4 +80,3 @@ contract MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress is MultiSigWall
        return true;
    }
 }
-
--- a/packages/contracts/src/current/protocol/Exchange/Exchange.sol
+++ b/packages/contracts/src/current/protocol/Exchange/Exchange.sol
@@ -16,11 +16,11 @@

 */

-pragma solidity ^0.4.11;
+pragma solidity ^0.4.14;

-import "./TokenTransferProxy.sol";
-import "./tokens/Token.sol";
-import "./utils/SafeMath.sol";
+import { TokenTransferProxy } from "../TokenTransferProxy/TokenTransferProxy.sol";
+import { Token_v1 as Token } from "../../../previous/Token/Token_v1.sol";
+import { SafeMath_v1 as SafeMath } from "../../../previous/SafeMath/SafeMath_v1.sol";

 /// @title Exchange - Facilitates exchange of ERC20 tokens.
 /// @author Amir Bandeali - <amir@0xProject.com>, Will Warren - <will@0xProject.com>
--- a/packages/contracts/src/current/protocol/TokenRegistry/TokenRegistry.sol
+++ b/packages/contracts/src/current/protocol/TokenRegistry/TokenRegistry.sol
@@ -18,7 +18,7 @@

 pragma solidity ^0.4.11;

-import "./utils/Ownable.sol";
+import { Ownable_v1 as Ownable } from "../../../previous/Ownable/Ownable_v1.sol";

 /// @title Token Registry - Stores metadata associated with ERC20 tokens. See ERC22 https://github.com/ethereum/EIPs/issues/22
 /// @author Amir Bandeali - <amir@0xProject.com>, Will Warren - <will@0xProject.com>
@@ -306,4 +306,3 @@ contract TokenRegistry is Ownable {
        return tokenAddresses;
    }
 }
-
--- a/packages/contracts/src/current/protocol/TokenTransferProxy/TokenTransferProxy.sol
+++ b/packages/contracts/src/current/protocol/TokenTransferProxy/TokenTransferProxy.sol
@@ -18,8 +18,8 @@

 pragma solidity ^0.4.11;

-import "./tokens/Token.sol";
-import "./utils/Ownable.sol";
+import { Token_v1 as Token } from "../../../previous/Token/Token_v1.sol";
+import { Ownable_v1 as Ownable } from "../../../previous/Ownable/Ownable_v1.sol";

 /// @title TokenTransferProxy - Transfers tokens on behalf of contracts that have been approved via decentralized governance.
 /// @author Amir Bandeali - <amir@0xProject.com>, Will Warren - <will@0xProject.com>
@@ -113,4 +113,3 @@ contract TokenTransferProxy is Ownable {
        return authorities;
    }
 }
-
--- a/packages/contracts/src/current/test/DummyToken/DummyToken.sol
+++ b/packages/contracts/src/current/test/DummyToken/DummyToken.sol
@@ -1,7 +1,7 @@
-pragma solidity ^0.4.11;
+pragma solidity ^0.4.18;

-import "./Mintable.sol";
-import "./../utils/Ownable.sol";
+import { Mintable } from "../Mintable/Mintable.sol";
+import { Ownable } from "../../utils/Ownable/Ownable.sol";

 contract DummyToken is Mintable, Ownable {
    string public name;
@@ -13,6 +13,7 @@ contract DummyToken is Mintable, Ownable {
        string _symbol,
        uint _decimals,
        uint _totalSupply)
+        public
    {
        name = _name;
        symbol = _symbol;
@@ -22,7 +23,8 @@ contract DummyToken is Mintable, Ownable {
    }

    function setBalance(address _target, uint _value)
-        onlyOwner 
+        public
+        onlyOwner
    {
        uint currBalance = balanceOf(_target);
        if (_value < currBalance) {
@@ -33,4 +35,3 @@ contract DummyToken is Mintable, Ownable {
        balances[_target] = _value;
    }
 }
-
--- a/packages/contracts/src/current/test/MaliciousToken/MaliciousToken.sol
+++ b/packages/contracts/src/current/test/MaliciousToken/MaliciousToken.sol
@@ -1,12 +1,12 @@
-pragma solidity ^0.4.11;
+pragma solidity ^0.4.18;

-import "./../tokens/StandardToken.sol";
+import { ERC20Token } from "../../tokens/ERC20Token/ERC20Token.sol";

-contract MaliciousToken is StandardToken {
+contract MaliciousToken is ERC20Token {
    uint8 stateToUpdate = 1;  // Not null so that change only requires 5000 gas

-    function updateState() 
-        internal 
+    function updateState()
+        internal
    {
        stateToUpdate++;
    }
@@ -29,4 +29,3 @@ contract MaliciousToken is StandardToken {
        return allowed[_owner][_spender];
    }
 }
-
--- a/packages/contracts/src/current/test/Mintable/Mintable.sol
+++ b/packages/contracts/src/current/test/Mintable/Mintable.sol
@@ -1,14 +1,14 @@
-pragma solidity ^0.4.11;
+pragma solidity ^0.4.18;

-import "./../tokens/UnlimitedAllowanceToken.sol";
-import "./../utils/SafeMath.sol";
+import { UnlimitedAllowanceToken } from "../../tokens/UnlimitedAllowanceToken/UnlimitedAllowanceToken.sol";
+import { SafeMath } from "../../utils/SafeMath/SafeMath.sol";

 /*
 * Mintable
 * Base contract that creates a mintable UnlimitedAllowanceToken
 */
 contract Mintable is UnlimitedAllowanceToken, SafeMath {
-    function mint(uint _value) 
+    function mint(uint _value)
        public
    {
        require(_value <= 100000000000000000000);
@@ -16,4 +16,3 @@ contract Mintable is UnlimitedAllowanceToken, SafeMath {
        totalSupply = safeAdd(totalSupply, _value);
    }
 }
-
--- a/packages/contracts/src/current/tokens/ERC20Token/ERC20Token.sol
+++ b/packages/contracts/src/current/tokens/ERC20Token/ERC20Token.sol
@@ -1,14 +1,14 @@
-pragma solidity 0.4.18;
+pragma solidity ^0.4.18;

-import "./Token_v2.sol";
+import { Token } from "../Token/Token.sol";

-contract ERC20Token is Token_v2 {
+contract ERC20Token is Token {

    function transfer(address _to, uint _value)
        public
-        returns (bool) 
+        returns (bool)
    {
-        require(balances[msg.sender] >= _value && balances[_to] + _value >= balances[_to]); 
+        require(balances[msg.sender] >= _value && balances[_to] + _value >= balances[_to]);
        balances[msg.sender] -= _value;
        balances[_to] += _value;
        Transfer(msg.sender, _to, _value);
@@ -16,10 +16,10 @@ contract ERC20Token is Token_v2 {
    }

    function transferFrom(address _from, address _to, uint _value)
-        public 
-        returns (bool) 
+        public
+        returns (bool)
    {
-        require(balances[_from] >= _value && allowed[_from][msg.sender] >= _value && balances[_to] + _value >= balances[_to]); 
+        require(balances[_from] >= _value && allowed[_from][msg.sender] >= _value && balances[_to] + _value >= balances[_to]);
        balances[_to] += _value;
        balances[_from] -= _value;
        allowed[_from][msg.sender] -= _value;
@@ -27,7 +27,7 @@ contract ERC20Token is Token_v2 {
        return true;
    }

-    function approve(address _spender, uint _value) 
+    function approve(address _spender, uint _value)
        public
        returns (bool)
    {
@@ -44,7 +44,7 @@ contract ERC20Token is Token_v2 {
        return balances[_owner];
    }

-    function allowance(address _owner, address _spender) 
+    function allowance(address _owner, address _spender)
        public
        view
        returns (uint)
@@ -56,4 +56,3 @@ contract ERC20Token is Token_v2 {
    mapping (address => mapping (address => uint)) allowed;
    uint public totalSupply;
 }
-
--- a/packages/contracts/src/current/tokens/Token/Token.sol
+++ b/packages/contracts/src/current/tokens/Token/Token.sol
@@ -1,6 +1,6 @@
-pragma solidity 0.4.18;
+pragma solidity ^0.4.18;

-contract Token_v2 {
+contract Token {

    /// @notice send `_value` token to `_to` from `msg.sender`
    /// @param _to The address of the recipient
@@ -33,4 +33,3 @@ contract Token_v2 {
    event Transfer(address indexed _from, address indexed _to, uint _value);
    event Approval(address indexed _owner, address indexed _spender, uint _value);
 }
-
--- a/packages/contracts/src/current/tokens/UnlimitedAllowanceToken/UnlimitedAllowanceToken.sol
+++ b/packages/contracts/src/current/tokens/UnlimitedAllowanceToken/UnlimitedAllowanceToken.sol
@@ -16,11 +16,11 @@

 */

-pragma solidity 0.4.18;
+pragma solidity ^0.4.18;

-import "./ERC20Token.sol";
+import { ERC20Token } from "../ERC20Token/ERC20Token.sol";

-contract UnlimitedAllowanceToken_v2 is ERC20Token {
+contract UnlimitedAllowanceToken is ERC20Token {

    uint constant MAX_UINT = 2**256 - 1;

@@ -30,11 +30,11 @@ contract UnlimitedAllowanceToken_v2 is ERC20Token {
    /// @param _value Amount to transfer.
    /// @return Success of transfer.
    function transferFrom(address _from, address _to, uint _value)
-        public 
-        returns (bool) 
+        public
+        returns (bool)
    {
        uint allowance = allowed[_from][msg.sender];
-        require(balances[_from] >= _value && allowance >= _value && balances[_to] + _value >= balances[_to]); 
+        require(balances[_from] >= _value && allowance >= _value && balances[_to] + _value >= balances[_to]);
        balances[_to] += _value;
        balances[_from] -= _value;
        if (allowance < MAX_UINT) {
@@ -44,4 +44,3 @@ contract UnlimitedAllowanceToken_v2 is ERC20Token {
        return true;
    }
 }
-
--- a/packages/contracts/src/current/tokens/WETH9/WETH9.sol
+++ b/packages/contracts/src/current/tokens/WETH9/WETH9.sol
--- a/packages/contracts/src/current/tokens/ZRXToken/ZRXToken.sol
+++ b/packages/contracts/src/current/tokens/ZRXToken/ZRXToken.sol
@@ -18,7 +18,7 @@

 pragma solidity ^0.4.11;

-import "./UnlimitedAllowanceToken.sol";
+import { UnlimitedAllowanceToken_v1 as UnlimitedAllowanceToken } from "../../../previous/UnlimitedAllowanceToken/UnlimitedAllowanceToken_v1.sol";

 contract ZRXToken is UnlimitedAllowanceToken {

@@ -31,4 +31,3 @@ contract ZRXToken is UnlimitedAllowanceToken {
        balances[msg.sender] = totalSupply;
    }
 }
-
--- a/packages/contracts/src/current/utils/Ownable/Ownable.sol
+++ b/packages/contracts/src/current/utils/Ownable/Ownable.sol
@@ -1,4 +1,4 @@
-pragma solidity 0.4.18;
+pragma solidity ^0.4.18;

 /*
 * Ownable
@@ -7,10 +7,10 @@ pragma solidity 0.4.18;
 * Provides onlyOwner modifier, which prevents function from running if it is called by anyone other than the owner.
 */

-contract Ownable_v2 {
+contract Ownable {
    address public owner;

-    function Ownable_v2()
+    function Ownable()
        public
    {
        owner = msg.sender;
@@ -23,11 +23,10 @@ contract Ownable_v2 {

    function transferOwnership(address newOwner)
        public
-        onlyOwner 
+        onlyOwner
    {
        if (newOwner != address(0)) {
            owner = newOwner;
        }
    }
 }
-
--- a/packages/contracts/src/current/utils/SafeMath/SafeMath.sol
+++ b/packages/contracts/src/current/utils/SafeMath/SafeMath.sol
@@ -1,6 +1,6 @@
-pragma solidity 0.4.18;
+pragma solidity ^0.4.18;

-contract SafeMath_v2 {
+contract SafeMath {
    function safeMul(uint a, uint b)
        internal
        pure
@@ -71,4 +71,3 @@ contract SafeMath_v2 {
        return a < b ? a : b;
    }
 }
-
--- a/packages/contracts/src/previous/ERC20Token/ERC20Token_v1.sol
+++ b/packages/contracts/src/previous/ERC20Token/ERC20Token_v1.sol
@@ -1,8 +1,8 @@
 pragma solidity ^0.4.11;

-import "./Token.sol";
+import { Token_v1 as Token } from "../Token/Token_v1.sol";

-contract StandardToken is Token {
+contract ERC20Token_v1 is Token {

    function transfer(address _to, uint _value) returns (bool) {
        //Default assumes totalSupply can't be over max (2^256 - 1).
@@ -42,4 +42,3 @@ contract StandardToken is Token {
    mapping (address => mapping (address => uint)) allowed;
    uint public totalSupply;
 }
-
--- a/packages/contracts/src/previous/Ownable/Ownable_v1.sol
+++ b/packages/contracts/src/previous/Ownable/Ownable_v1.sol
@@ -7,10 +7,10 @@ pragma solidity ^0.4.11;
 * Provides onlyOwner modifier, which prevents function from running if it is called by anyone other than the owner.
 */

-contract Ownable {
+contract Ownable_v1 {
    address public owner;

-    function Ownable() {
+    function Ownable_v1() {
        owner = msg.sender;
    }

@@ -25,4 +25,3 @@ contract Ownable {
        }
    }
 }
-
--- a/packages/contracts/src/previous/SafeMath/SafeMath_v1.sol
+++ b/packages/contracts/src/previous/SafeMath/SafeMath_v1.sol
@@ -0,0 +1,73 @@
+pragma solidity ^0.4.11;
+
+contract SafeMath_v1 {
+    function safeMul(uint a, uint b)
+        internal
+        constant
+        returns (uint256)
+    {
+        uint c = a * b;
+        assert(a == 0 || c / a == b);
+        return c;
+    }
+
+    function safeDiv(uint a, uint b)
+        internal
+        constant
+        returns (uint256)
+    {
+        uint c = a / b;
+        return c;
+    }
+
+    function safeSub(uint a, uint b)
+        internal
+        constant
+        returns (uint256)
+    {
+        assert(b <= a);
+        return a - b;
+    }
+
+    function safeAdd(uint a, uint b)
+        internal
+        constant
+        returns (uint256)
+    {
+        uint c = a + b;
+        assert(c >= a);
+        return c;
+    }
+
+    function max64(uint64 a, uint64 b)
+        internal
+        constant
+        returns (uint64)
+    {
+        return a >= b ? a : b;
+    }
+
+    function min64(uint64 a, uint64 b)
+        internal
+        constant
+        returns (uint64)
+    {
+        return a < b ? a : b;
+    }
+
+    function max256(uint256 a, uint256 b)
+        internal
+        constant
+        returns (uint256)
+    {
+        return a >= b ? a : b;
+    }
+
+    function min256(uint256 a, uint256 b)
+        internal
+        constant
+        returns (uint256)
+    {
+        return a < b ? a : b;
+    }
+}
--- a/packages/contracts/src/previous/Token/Token_v1.sol
+++ b/packages/contracts/src/previous/Token/Token_v1.sol
@@ -1,6 +1,6 @@
 pragma solidity ^0.4.11;

-contract Token {
+contract Token_v1 {

    /// @return total amount of tokens
    function totalSupply() constant returns (uint supply) {}
--- a/packages/contracts/src/previous/UnlimitedAllowanceToken/UnlimitedAllowanceToken_v1.sol
+++ b/packages/contracts/src/previous/UnlimitedAllowanceToken/UnlimitedAllowanceToken_v1.sol
@@ -18,9 +18,9 @@

 pragma solidity ^0.4.11;

-import "./StandardToken.sol";
+import { ERC20Token_v1 as ERC20Token } from "../ERC20Token/ERC20Token_v1.sol";

-contract UnlimitedAllowanceToken is StandardToken {
+contract UnlimitedAllowanceToken_v1 is ERC20Token {

    uint constant MAX_UINT = 2**256 - 1;

@@ -50,4 +50,3 @@ contract UnlimitedAllowanceToken is StandardToken {
        }
    }
 }
-
--- a/packages/contracts/test/exchange/core.ts
+++ b/packages/contracts/test/exchange/core.ts
@@ -678,7 +678,7 @@ describe('Exchange', () => {
                exWrapper.fillOrderAsync(order, taker, {
                    shouldThrowOnInsufficientBalanceOrAllowance: false,
                }),
-            ).to.be.rejectedWith(constants.INVALID_OPCODE);
+            ).to.be.rejectedWith(constants.REVERT);
        });

        it('should not change balances if an order is expired', async () => {
--- a/packages/contracts/test/unlimited_allowance_token.ts
+++ b/packages/contracts/test/unlimited_allowance_token.ts
@@ -44,6 +44,14 @@ describe('UnlimitedAllowanceToken', () => {
        await blockchainLifecycle.revertAsync();
    });
    describe('transfer', () => {
+        it('should throw if owner has insufficient balance', async () => {
+            const ownerBalance = await zeroEx.token.getBalanceAsync(tokenAddress, owner);
+            const amountToTransfer = ownerBalance.plus(1);
+            return expect(token.transfer.call(spender, amountToTransfer, { from: owner })).to.be.rejectedWith(
+                constants.REVERT,
+            );
+        });
+
        it('should transfer balance from sender to receiver', async () => {
            const receiver = spender;
            const initOwnerBalance = await zeroEx.token.getBalanceAsync(tokenAddress, owner);
@@ -67,15 +75,18 @@ describe('UnlimitedAllowanceToken', () => {
    });

    describe('transferFrom', () => {
-        it('should return false if owner has insufficient balance', async () => {
+        it('should throw if owner has insufficient balance', async () => {
            const ownerBalance = await zeroEx.token.getBalanceAsync(tokenAddress, owner);
            const amountToTransfer = ownerBalance.plus(1);
            await zeroEx.token.setAllowanceAsync(tokenAddress, owner, spender, amountToTransfer);
-            const didReturnTrue = await token.transferFrom.call(owner, spender, amountToTransfer, { from: spender });
-            expect(didReturnTrue).to.be.false();
+            return expect(
+                token.transferFrom.call(owner, spender, amountToTransfer, {
+                    from: spender,
+                }),
+            ).to.be.rejectedWith(constants.REVERT);
        });

-        it('should return false if spender has insufficient allowance', async () => {
+        it('should throw if spender has insufficient allowance', async () => {
            const ownerBalance = await zeroEx.token.getBalanceAsync(tokenAddress, owner);
            const amountToTransfer = ownerBalance;

@@ -83,8 +94,11 @@ describe('UnlimitedAllowanceToken', () => {
            const spenderAllowanceIsInsufficient = spenderAllowance.cmp(amountToTransfer) < 0;
            expect(spenderAllowanceIsInsufficient).to.be.true();

-            const didReturnTrue = await token.transferFrom.call(owner, spender, amountToTransfer, { from: spender });
-            expect(didReturnTrue).to.be.false();
+            return expect(
+                token.transferFrom.call(owner, spender, amountToTransfer, {
+                    from: spender,
+                }),
+            ).to.be.rejectedWith(constants.REVERT);
        });

        it('should return true on a 0 value transfer', async () => {
--- a/packages/contracts/test/unlimited_allowance_token_v2.ts
+++ b/packages/contracts/test/unlimited_allowance_token_v2.ts
@@ -1,152 +0,0 @@
-import { ZeroEx } from '0x.js';
-import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils';
-import { BigNumber } from '@0xproject/utils';
-import { Web3Wrapper } from '@0xproject/web3-wrapper';
-import * as chai from 'chai';
-import * as Web3 from 'web3';
-
-import { constants } from '../util/constants';
-import { ContractName } from '../util/types';
-
-import { chaiSetup } from './utils/chai_setup';
-import { deployer } from './utils/deployer';
-
-chaiSetup.configure();
-const expect = chai.expect;
-const web3 = web3Factory.create();
-const web3Wrapper = new Web3Wrapper(web3.currentProvider);
-const blockchainLifecycle = new BlockchainLifecycle();
-
-describe('UnlimitedAllowanceTokenV2', () => {
-    const config = {
-        networkId: constants.TESTRPC_NETWORK_ID,
-    };
-    const zeroEx = new ZeroEx(web3.currentProvider, config);
-    let owner: string;
-    let spender: string;
-
-    const MAX_MINT_VALUE = new BigNumber(100000000000000000000);
-    let tokenAddress: string;
-    let token: Web3.ContractInstance;
-
-    before(async () => {
-        const accounts = await web3Wrapper.getAvailableAddressesAsync();
-        owner = accounts[0];
-        spender = accounts[1];
-        token = await deployer.deployAsync(ContractName.DummyToken_v2);
-        await token.mint(MAX_MINT_VALUE, { from: owner });
-        tokenAddress = token.address;
-    });
-    beforeEach(async () => {
-        await blockchainLifecycle.startAsync();
-    });
-    afterEach(async () => {
-        await blockchainLifecycle.revertAsync();
-    });
-    describe('transfer', () => {
-        it('should throw if owner has insufficient balance', async () => {
-            const ownerBalance = await zeroEx.token.getBalanceAsync(tokenAddress, owner);
-            const amountToTransfer = ownerBalance.plus(1);
-            return expect(token.transfer.call(spender, amountToTransfer, { from: owner })).to.be.rejectedWith(
-                constants.REVERT,
-            );
-        });
-
-        it('should transfer balance from sender to receiver', async () => {
-            const receiver = spender;
-            const initOwnerBalance = await zeroEx.token.getBalanceAsync(tokenAddress, owner);
-            const amountToTransfer = new BigNumber(1);
-            await zeroEx.token.transferAsync(tokenAddress, owner, receiver, amountToTransfer);
-            const finalOwnerBalance = await zeroEx.token.getBalanceAsync(tokenAddress, owner);
-            const finalReceiverBalance = await zeroEx.token.getBalanceAsync(tokenAddress, receiver);
-
-            const expectedFinalOwnerBalance = initOwnerBalance.minus(amountToTransfer);
-            const expectedFinalReceiverBalance = amountToTransfer;
-            expect(finalOwnerBalance).to.be.bignumber.equal(expectedFinalOwnerBalance);
-            expect(finalReceiverBalance).to.be.bignumber.equal(expectedFinalReceiverBalance);
-        });
-
-        it('should return true on a 0 value transfer', async () => {
-            const didReturnTrue = await token.transfer.call(spender, 0, {
-                from: owner,
-            });
-            expect(didReturnTrue).to.be.true();
-        });
-    });
-
-    describe('transferFrom', () => {
-        it('should throw if owner has insufficient balance', async () => {
-            const ownerBalance = await zeroEx.token.getBalanceAsync(tokenAddress, owner);
-            const amountToTransfer = ownerBalance.plus(1);
-            await zeroEx.token.setAllowanceAsync(tokenAddress, owner, spender, amountToTransfer);
-            return expect(
-                token.transferFrom.call(owner, spender, amountToTransfer, {
-                    from: spender,
-                }),
-            ).to.be.rejectedWith(constants.REVERT);
-        });
-
-        it('should throw if spender has insufficient allowance', async () => {
-            const ownerBalance = await zeroEx.token.getBalanceAsync(tokenAddress, owner);
-            const amountToTransfer = ownerBalance;
-
-            const spenderAllowance = await zeroEx.token.getAllowanceAsync(tokenAddress, owner, spender);
-            const spenderAllowanceIsInsufficient = spenderAllowance.cmp(amountToTransfer) < 0;
-            expect(spenderAllowanceIsInsufficient).to.be.true();
-
-            return expect(
-                token.transferFrom.call(owner, spender, amountToTransfer, {
-                    from: spender,
-                }),
-            ).to.be.rejectedWith(constants.REVERT);
-        });
-
-        it('should return true on a 0 value transfer', async () => {
-            const amountToTransfer = 0;
-            const didReturnTrue = await token.transferFrom.call(owner, spender, amountToTransfer, { from: spender });
-            expect(didReturnTrue).to.be.true();
-        });
-
-        it('should not modify spender allowance if spender allowance is 2^256 - 1', async () => {
-            const initOwnerBalance = await zeroEx.token.getBalanceAsync(tokenAddress, owner);
-            const amountToTransfer = initOwnerBalance;
-            const initSpenderAllowance = zeroEx.token.UNLIMITED_ALLOWANCE_IN_BASE_UNITS;
-            await zeroEx.token.setAllowanceAsync(tokenAddress, owner, spender, initSpenderAllowance);
-            await zeroEx.token.transferFromAsync(tokenAddress, owner, spender, spender, amountToTransfer, {
-                gasLimit: constants.MAX_TOKEN_TRANSFERFROM_GAS,
-            });
-
-            const newSpenderAllowance = await zeroEx.token.getAllowanceAsync(tokenAddress, owner, spender);
-            expect(initSpenderAllowance).to.be.bignumber.equal(newSpenderAllowance);
-        });
-
-        it('should transfer the correct balances if spender has sufficient allowance', async () => {
-            const initOwnerBalance = await zeroEx.token.getBalanceAsync(tokenAddress, owner);
-            const amountToTransfer = initOwnerBalance;
-            const initSpenderAllowance = initOwnerBalance;
-            await zeroEx.token.setAllowanceAsync(tokenAddress, owner, spender, initSpenderAllowance);
-            await zeroEx.token.transferFromAsync(tokenAddress, owner, spender, spender, amountToTransfer, {
-                gasLimit: constants.MAX_TOKEN_TRANSFERFROM_GAS,
-            });
-
-            const newOwnerBalance = await zeroEx.token.getBalanceAsync(tokenAddress, owner);
-            const newSpenderBalance = await zeroEx.token.getBalanceAsync(tokenAddress, spender);
-
-            expect(newOwnerBalance).to.be.bignumber.equal(0);
-            expect(newSpenderBalance).to.be.bignumber.equal(initOwnerBalance);
-        });
-
-        it('should modify allowance if spender has sufficient allowance less than 2^256 - 1', async () => {
-            const initOwnerBalance = await zeroEx.token.getBalanceAsync(tokenAddress, owner);
-            const amountToTransfer = initOwnerBalance;
-            const initSpenderAllowance = initOwnerBalance;
-            await zeroEx.token.setAllowanceAsync(tokenAddress, owner, spender, initSpenderAllowance);
-            await zeroEx.token.transferFromAsync(tokenAddress, owner, spender, spender, amountToTransfer, {
-                gasLimit: constants.MAX_TOKEN_TRANSFERFROM_GAS,
-            });
-
-            const newSpenderAllowance = await zeroEx.token.getAllowanceAsync(tokenAddress, owner, spender);
-            expect(newSpenderAllowance).to.be.bignumber.equal(0);
-        });
-    });
-});
--- a/packages/contracts/test/utils/deployer.ts
+++ b/packages/contracts/test/utils/deployer.ts
@@ -5,7 +5,7 @@ import * as path from 'path';
 import { constants } from '../../util/constants';

 const deployerOpts = {
-    artifactsDir: `${path.resolve('build')}/artifacts`,
+    artifactsDir: path.resolve('artifacts'),
    jsonrpcPort: devConstants.RPC_PORT,
    networkId: constants.TESTRPC_NETWORK_ID,
    defaults: {
--- a/packages/contracts/util/artifacts.ts
+++ b/packages/contracts/util/artifacts.ts
@@ -1,21 +1,19 @@
-import * as DummyTokenArtifact from '../build/artifacts/DummyToken.json';
-import * as DummyTokenV2Artifact from '../build/artifacts/DummyToken_v2.json';
-import * as ExchangeArtifact from '../build/artifacts/Exchange.json';
-import * as MaliciousTokenArtifact from '../build/artifacts/MaliciousToken.json';
-import * as MultiSigWalletWithTimeLockArtifact from '../build/artifacts/MultiSigWalletWithTimeLock.json';
-import * as MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddressArtifact from '../build/artifacts/MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress.json';
-import * as TokenArtifact from '../build/artifacts/Token.json';
-import * as TokenRegistryArtifact from '../build/artifacts/TokenRegistry.json';
-import * as TokenTransferProxyArtifact from '../build/artifacts/TokenTransferProxy.json';
-import * as EtherTokenArtifact from '../build/artifacts/WETH9.json';
-import * as ZRXArtifact from '../build/artifacts/ZRXToken.json';
+import * as DummyTokenArtifact from '../artifacts/DummyToken.json';
+import * as ExchangeArtifact from '../artifacts/Exchange.json';
+import * as MaliciousTokenArtifact from '../artifacts/MaliciousToken.json';
+import * as MultiSigWalletWithTimeLockArtifact from '../artifacts/MultiSigWalletWithTimeLock.json';
+import * as MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddressArtifact from '../artifacts/MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress.json';
+import * as TokenArtifact from '../artifacts/Token.json';
+import * as TokenRegistryArtifact from '../artifacts/TokenRegistry.json';
+import * as TokenTransferProxyArtifact from '../artifacts/TokenTransferProxy.json';
+import * as EtherTokenArtifact from '../artifacts/WETH9.json';
+import * as ZRXArtifact from '../artifacts/ZRXToken.json';

 import { Artifact } from './types';

 export const artifacts = {
    ZRXArtifact: (ZRXArtifact as any) as Artifact,
    DummyTokenArtifact: (DummyTokenArtifact as any) as Artifact,
-    DummyTokenV2Artifact: (DummyTokenV2Artifact as any) as Artifact,
    TokenArtifact: (TokenArtifact as any) as Artifact,
    ExchangeArtifact: (ExchangeArtifact as any) as Artifact,
    EtherTokenArtifact: (EtherTokenArtifact as any) as Artifact,
--- a/packages/contracts/util/types.ts
+++ b/packages/contracts/util/types.ts
@@ -126,7 +126,6 @@ export enum ContractName {
    Exchange = 'Exchange',
    ZRXToken = 'ZRXToken',
    DummyToken = 'DummyToken',
-    DummyToken_v2 = 'DummyToken_v2',
    EtherToken = 'WETH9',
    MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress = 'MultiSigWalletWithTimeLockExceptRemoveAuthorizedAddress',
    MaliciousToken = 'MaliciousToken',
--- a/packages/deployer/README.md
+++ b/packages/deployer/README.md
@@ -60,6 +60,12 @@ yarn install
 yarn build
 ```

+or
+
+```bash
+yarn build:watch
+```
+
 ### Lint

 ```bash
--- a/packages/deployer/package.json
+++ b/packages/deployer/package.json
@@ -1,10 +1,11 @@
 {
    "name": "@0xproject/deployer",
-    "version": "0.0.4",
+    "version": "0.0.5",
    "description": "Smart contract deployer of 0x protocol",
    "main": "lib/src/index.js",
    "types": "lib/src/index.d.ts",
    "scripts": {
+        "build:watch": "tsc -w",
        "build": "yarn clean && copyfiles 'test/fixtures/contracts/**/*' src/solc/solc_bin/* ./lib && tsc",
        "test": "npm run build; mocha lib/test/*_test.js",
        "compile": "npm run build; node lib/src/cli.js compile",
@@ -28,14 +29,13 @@
    "homepage": "https://github.com/0xProject/0x.js/packages/deployer/README.md",
    "devDependencies": {
        "copyfiles": "^1.2.0",
-        "web3-typescript-typings": "^0.9.4",
        "types-bn": "^0.0.1",
-        "typescript": "~2.6.1",
-        "web3-typescript-typings": "^0.9.7"
+        "typescript": "2.7.1",
+        "web3-typescript-typings": "^0.9.8"
    },
    "dependencies": {
-        "@0xproject/utils": "^0.2.1",
-        "@0xproject/web3-wrapper": "^0.1.8",
+        "@0xproject/utils": "^0.2.4",
+        "@0xproject/web3-wrapper": "^0.1.9",
        "lodash": "^4.17.4",
        "solc": "^0.4.18",
        "web3": "^0.20.0",
--- a/packages/deployer/src/cli.ts
+++ b/packages/deployer/src/cli.ts
@@ -9,8 +9,8 @@ import { commands } from './commands';
 import { CliOptions, CompilerOptions, DeployerOptions } from './utils/types';

 const DEFAULT_OPTIMIZER_ENABLED = false;
-const DEFAULT_CONTRACTS_DIR = path.resolve('contracts');
-const DEFAULT_ARTIFACTS_DIR = `${path.resolve('build')}/artifacts/`;
+const DEFAULT_CONTRACTS_DIR = path.resolve('src');
+const DEFAULT_ARTIFACTS_DIR = path.resolve('artifacts');
 const DEFAULT_NETWORK_ID = 50;
 const DEFAULT_JSONRPC_PORT = 8545;
 const DEFAULT_GAS_PRICE = (10 ** 9 * 2).toString();
--- a/packages/deployer/src/solc/bin_paths.ts
+++ b/packages/deployer/src/solc/bin_paths.ts
@@ -12,4 +12,5 @@ export const binPaths: BinaryPaths = {
    '0.4.16': 'soljson-v0.4.16+commit.d7661dd9.js',
    '0.4.17': 'soljson-v0.4.17+commit.bdeb9e52.js',
    '0.4.18': 'soljson-v0.4.18+commit.9cf6e910.js',
+    '0.4.19': 'soljson-v0.4.19+commit.c4cbbb05.js',
 };
--- a/packages/deployer/src/solc/solc_bin/soljson-v0.4.19+commit.c4cbbb05.js
+++ b/packages/deployer/src/solc/solc_bin/soljson-v0.4.19+commit.c4cbbb05.js
--- a/packages/dev-utils/package.json
+++ b/packages/dev-utils/package.json
@@ -1,10 +1,11 @@
 {
    "name": "@0xproject/dev-utils",
-    "version": "0.0.8",
+    "version": "0.0.9",
    "description": "0x dev TS utils",
    "main": "lib/index.js",
    "types": "lib/index.d.ts",
    "scripts": {
+        "build:watch": "tsc -w",
        "build": "tsc",
        "clean": "shx rm -rf lib",
        "lint": "tslint --project . 'src/**/*.ts'"
@@ -19,18 +20,18 @@
    },
    "homepage": "https://github.com/0xProject/0x.js/packages/dev-utils/README.md",
    "devDependencies": {
-        "@0xproject/tslint-config": "^0.4.5",
+        "@0xproject/tslint-config": "^0.4.6",
+        "@0xproject/types": "^0.1.8",
        "@types/lodash": "^4.14.86",
-        "@0xproject/types": "^0.1.5",
        "npm-run-all": "^4.1.2",
        "shx": "^0.2.2",
        "tslint": "5.8.0",
        "types-bn": "^0.0.1",
        "types-ethereumjs-util": "0xproject/types-ethereumjs-util",
-        "typescript": "~2.6.1"
+        "typescript": "2.7.1"
    },
    "dependencies": {
-        "@0xproject/utils": "^0.2.3",
+        "@0xproject/utils": "^0.2.4",
        "ethereumjs-util": "^5.1.2",
        "lodash": "^4.17.4",
        "request-promise-native": "^1.0.5",
--- a/packages/json-schemas/README.md
+++ b/packages/json-schemas/README.md
@@ -49,6 +49,12 @@ yarn install
 yarn build
 ```

+or
+
+```bash
+yarn build:watch
+```
+
 ### Lint

 ```bash
--- a/packages/json-schemas/package.json
+++ b/packages/json-schemas/package.json
@@ -1,10 +1,11 @@
 {
    "name": "@0xproject/json-schemas",
-    "version": "0.7.6",
+    "version": "0.7.7",
    "description": "0x-related json schemas",
    "main": "lib/src/index.js",
    "types": "lib/src/index.d.ts",
    "scripts": {
+        "build:watch": "tsc -w",
        "lint": "tslint --project . 'src/**/*.ts' 'test/**/*.ts'",
        "test": "run-s clean build run_mocha",
        "test:circleci": "yarn test",
@@ -27,8 +28,8 @@
        "lodash.values": "^4.3.0"
    },
    "devDependencies": {
-        "@0xproject/tslint-config": "^0.4.5",
-        "@0xproject/utils": "^0.2.3",
+        "@0xproject/tslint-config": "^0.4.6",
+        "@0xproject/utils": "^0.2.4",
        "@types/lodash.foreach": "^4.5.3",
        "@types/lodash.values": "^4.3.3",
        "@types/mocha": "^2.2.42",
@@ -40,6 +41,6 @@
        "npm-run-all": "^4.1.2",
        "shx": "^0.2.2",
        "tslint": "5.8.0",
-        "typescript": "~2.6.1"
+        "typescript": "2.7.1"
    }
 }
--- a/packages/long-lived-subscriptions-test/Dockerfile
+++ b/packages/long-lived-subscriptions-test/Dockerfile
@@ -0,0 +1,10 @@
+FROM node
+
+WORKDIR /src
+
+COPY package.json .
+RUN yarn install
+
+COPY . .
+
+CMD ["./lib/index.js"]
--- a/packages/long-lived-subscriptions-test/package.json
+++ b/packages/long-lived-subscriptions-test/package.json
@@ -0,0 +1,25 @@
+{
+    "name": "long-lived-subscriptions-test",
+    "version": "0.0.1",
+    "description": "",
+    "scripts": {
+        "build:watch": "tsc -w",
+        "build": "tsc",
+        "start": "node lib/index.js",
+        "clean": "shx rm -rf lib",
+        "lint": "tslint --project . 'src/**/*.ts'"
+    },
+    "dependencies": {
+        "0x.js": "^0.31.1",
+        "lodash": "^4.17.4",
+        "web3": "^0.20.0"
+    },
+    "devDependencies": {
+        "@0xproject/tslint-config": "^0.4.6",
+        "@types/lodash": "^4.14.86",
+        "shx": "^0.2.2",
+        "tslint": "5.8.0",
+        "typescript": "2.7.1",
+        "web3-typescript-typings": "^0.9.8"
+    }
+}
--- a/packages/long-lived-subscriptions-test/src/index.ts
+++ b/packages/long-lived-subscriptions-test/src/index.ts
@@ -0,0 +1,32 @@
+import { DecodedLogEvent, ExchangeEvents, LogFillContractEventArgs, ZeroEx } from '0x.js';
+import * as _ from 'lodash';
+import * as Web3 from 'web3';
+
+const zeroExConfig = {
+    networkId: 1,
+};
+
+const RPC_URL = 'https://mainnet.infura.io/T5WSC8cautR4KXyYgsRs';
+// const RPC_URL = 'https://mainnet.0xproject.com';
+
+const web3 = new Web3(new Web3.providers.HttpProvider(RPC_URL));
+const zeroEx = new ZeroEx(web3.currentProvider, zeroExConfig);
+
+const subscribe = () => {
+    console.log('subscribing...');
+    zeroEx.exchange.subscribe<LogFillContractEventArgs>(
+        ExchangeEvents.LogFill,
+        {},
+        (err: Error | null, event?: DecodedLogEvent<LogFillContractEventArgs>) => {
+            if (_.isNull(err)) {
+                console.log('EVENT');
+                console.log(event);
+            } else {
+                console.log('ERROR');
+                console.log(err);
+                subscribe();
+            }
+        },
+    );
+};
+subscribe();
--- a/packages/long-lived-subscriptions-test/tsconfig.json
+++ b/packages/long-lived-subscriptions-test/tsconfig.json
@@ -0,0 +1,7 @@
+{
+    "extends": "../../tsconfig",
+    "compilerOptions": {
+        "outDir": "lib"
+    },
+    "include": ["./src/**/*", "../../node_modules/web3-typescript-typings/index.d.ts"]
+}
--- a/packages/long-lived-subscriptions-test/tslint.json
+++ b/packages/long-lived-subscriptions-test/tslint.json
@@ -0,0 +1,3 @@
+{
+    "extends": ["@0xproject/tslint-config"]
+}
--- a/packages/monorepo-scripts/README.md
+++ b/packages/monorepo-scripts/README.md
@@ -40,6 +40,12 @@ yarn install
 yarn build
 ```

+or
+
+```bash
+yarn build:watch
+```
+
 ### Clean

 ```bash
--- a/packages/monorepo-scripts/package.json
+++ b/packages/monorepo-scripts/package.json
@@ -1,9 +1,10 @@
 {
    "name": "@0xproject/monorepo-scripts",
-    "version": "0.1.7",
+    "version": "0.1.8",
    "private": true,
    "description": "Helper scripts for the monorepo",
    "scripts": {
+        "build:watch": "tsc -w",
        "deps_versions": "node ./lib/deps_versions.js",
        "lint": "tslint --project . 'src/**/*.ts'",
        "clean": "shx rm -rf lib",
@@ -19,12 +20,12 @@
    },
    "homepage": "https://github.com/0xProject/0x.js/packages/monorepo-scripts/README.md",
    "devDependencies": {
-        "@0xproject/tslint-config": "^0.4.5",
+        "@0xproject/tslint-config": "^0.4.6",
        "@types/glob": "^5.0.33",
        "@types/node": "^8.0.53",
        "shx": "^0.2.2",
        "tslint": "5.8.0",
-        "typescript": "~2.6.1"
+        "typescript": "2.7.1"
    },
    "dependencies": {
        "chalk": "^2.3.0",
--- a/packages/subproviders/README.md
+++ b/packages/subproviders/README.md
@@ -64,6 +64,12 @@ yarn install
 yarn build
 ```

+or
+
+```bash
+yarn build:watch
+```
+
 ### Clean

 ```bash
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Leonid Logvinov	46ad7b1b38	Add dates to CHANGELOGs	2018-02-05 22:04:03 +01:00
Leonid Logvinov	7e5b7a7f2a	Merge branch 'development' of github.com:0xProject/0x.js into development	2018-02-05 21:56:41 +01:00
Leonid	156e85a6b3	Merge pull request #366 from 0xProject/fix/abi_decoder_colision Fix an exception when a signature collision happens	2018-02-05 21:56:04 +01:00
Leonid Logvinov	6fce02d25e	Change CHANGELOGs	2018-02-05 21:53:41 +01:00
Remco Bloemen	4ddb86df53	Merge pull request #360 from 0xProject/feature/editorconfig Add .editorconfig	2018-02-05 11:31:06 -08:00
Leonid	3565e96f42	Merge branch 'development' into fix/abi_decoder_colision	2018-02-05 19:31:37 +01:00
Leonid	2c7db23022	Merge pull request #350 from 0xProject/fix/ether_token_address Add zeroEx.etherToken.getContractAddressIfExists	2018-02-05 19:27:20 +01:00
Remco Bloemen	fe51c9a9a2	Add .editorconfig	2018-02-05 10:25:05 -08:00
Leonid Logvinov	5324dfa5a7	Fix a typo	2018-02-05 19:13:09 +01:00
Leonid Logvinov	881d32e733	Temp	2018-02-05 19:10:17 +01:00
Leonid Logvinov	1f4cbb7479	Use forEach instead of map	2018-02-05 13:04:49 +01:00
Leonid Logvinov	b17bbdaa7d	Add PR number	2018-02-05 13:01:53 +01:00
Leonid Logvinov	5458a1c1b7	Fix an exception when a signature collision happens	2018-02-05 12:59:10 +01:00
Leonid Logvinov	fa98450754	Fix prettier	2018-02-05 12:49:57 +01:00
Leonid	7b4f2b47de	Merge branch 'development' into fix/ether_token_address	2018-02-05 12:33:40 +01:00
Leonid Logvinov	400a97e7a8	Add regression tests	2018-02-05 12:32:59 +01:00
Leonid Logvinov	a816fb5958	Improve the comment and fix an exception	2018-02-05 12:28:27 +01:00
Leonid	c7ad6ebad6	Merge pull request #358 from 0xProject/feature/build_watch Add build:watch command to all TS packages	2018-02-05 12:03:36 +01:00
Leonid Logvinov	85b4a82a4b	Add missing comas	2018-02-05 12:03:13 +01:00
Leonid	f18fa8e947	Merge branch 'development' into feature/build_watch	2018-02-05 12:00:05 +01:00
Leonid	44cd185c66	Merge pull request #356 from 0xProject/lerna-ignore Ignore test files and markdown files changes on publish	2018-02-05 11:26:31 +01:00
Leonid Logvinov	890f414b5a	Lerna-ignore tslint and tsconfig	2018-02-05 11:25:59 +01:00
Leonid	03b1b12ef1	Merge pull request #359 from 0xProject/feature/ts-2.7 TS 2.7	2018-02-05 11:24:36 +01:00
Amir Bandeali	6a9d3de0f9	Merge pull request #329 from 0xProject/feature/contracts/versioning Implement stop-gap smart contract versioning	2018-02-02 10:57:18 -08:00
Amir Bandeali	05aae36813	Update contract versions, fix tests	2018-02-02 09:41:19 -08:00
Amir Bandeali	d5d6079b67	Rename directories	2018-02-02 09:39:08 -08:00
Amir Bandeali	bb4c8bf8eb	Rename previous contracts, fix imports, add nested file structure	2018-02-02 09:39:08 -08:00
Fabio Berger	3eb40db498	Move all contracts into a single directory	2018-02-02 09:39:08 -08:00
Fabio Berger	576f63d5e4	Update import	2018-02-02 09:39:08 -08:00
Fabio Berger	cda1dc82e9	Fix import	2018-02-02 09:39:08 -08:00
Fabio Berger	2721252d6a	Get rid of suffixed contract versioning and replace it with a poor-mans package manager. Versions are stored locally, and are generated in a copy-on-write basis as required	2018-02-02 09:39:08 -08:00
Leonid Logvinov	45ac960308	Add build:watch to README's	2018-02-02 12:42:19 +01:00
Leonid	47d74aa24a	Merge pull request #361 from 0xProject/feature/deployer/solc-0.4.19 Add solc 0.4.19	2018-02-02 12:29:58 +01:00
Brandon Millman	9c3bfd920f	Add CODEOWNERS file for automatically adding reviewers to PRs	2018-02-01 16:31:00 -08:00
Remco Bloemen	27400fcd5b	Add solc 0.4.19	2018-02-01 15:46:38 -08:00
Leonid Logvinov	d4631e14b2	Publish - 0x.js@0.31.1 - @0xproject/abi-gen@0.1.6 - @0xproject/assert@0.0.15 - chai-as-promised-typescript-typings@0.0.8 - @0xproject/connect@0.5.4 - contracts@2.1.8 - @0xproject/deployer@0.0.5 - @0xproject/dev-utils@0.0.9 - @0xproject/json-schemas@0.7.7 - @0xproject/monorepo-scripts@0.1.8 - @0xproject/subproviders@0.3.5 - @0xproject/testnet-faucets@1.0.9 - @0xproject/tslint-config@0.4.6 - @0xproject/types@0.1.8 - @0xproject/utils@0.2.4 - web3-typescript-typings@0.9.8 - @0xproject/web3-wrapper@0.1.9 - @0xproject/website@0.0.11	2018-02-01 16:39:06 +01:00
Leonid Logvinov	0c6cbb66b1	Lerna ignore scripts and lib	2018-02-01 12:56:46 +01:00
Leonid Logvinov	f09393d4f4	Ignore test files and markdown files changes on publish	2018-02-01 12:56:10 +01:00
Leonid Logvinov	f6d963d45a	Fix errors after TS upgrade	2018-02-01 12:51:04 +01:00
Leonid Logvinov	39e3733be4	Upgrade TS to the newest version	2018-02-01 12:50:55 +01:00
Leonid Logvinov	09659cc304	Add build:watch command to all TS packages	2018-02-01 12:32:05 +01:00
Leonid Logvinov	1c1f2ef1ff	Fix PR template	2018-01-30 15:05:16 +01:00
Leonid Logvinov	4fa774f866	Update CHANGELOG	2018-01-30 15:04:42 +01:00
Leonid Logvinov	4671999ea0	Fix linter errors	2018-01-30 14:54:10 +01:00
Leonid Logvinov	0a73bbe279	Add zeroEx.etherToken.getContractAddressifExists	2018-01-30 14:35:04 +01:00
				`@@ -0,0 +1 @@`
				`* @abandeali1 @BMillman19 @dekz @fabioberger @LogvinovLeon @Remco`