Fix many linter errors that showed up upon upgrading tsutil

packages/contracts/test/exchange/signature_validator.ts

@@ -1,5 +1,5 @@
 import { BlockchainLifecycle } from '@0xproject/dev-utils';
-import { signatureUtils, assetDataUtils, orderHashUtils } from '@0xproject/order-utils';
+import { assetDataUtils, orderHashUtils, signatureUtils } from '@0xproject/order-utils';
 import { RevertReason, SignatureType, SignedOrder, SignerType } from '@0xproject/types';
 import * as chai from 'chai';
 import { LogWithDecodedArgs } from 'ethereum-types';

packages/contracts/test/utils/erc20_wrapper.ts

@@ -23,8 +23,8 @@ export class ERC20Wrapper {
     /**
      * Instanitates an ERC20Wrapper
      * @param provider Web3 provider to use for all JSON RPC requests
-     * @param tokenOwnerAddresses
-     * @param contractOwnerAddress
+     * @param tokenOwnerAddresses Addresses that we want to endow as owners for dummy ERC20 tokens
+     * @param contractOwnerAddress Desired owner of the contract
      * Instance of ERC20Wrapper
      */
     constructor(provider: Provider, tokenOwnerAddresses: string[], contractOwnerAddress: string) {

packages/contracts/test/utils/log_decoder.ts

@@ -1,8 +1,8 @@
-import { ContractArtifact } from 'ethereum-types';
 import { AbiDecoder, BigNumber } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import {
     AbiDefinition,
+    ContractArtifact,
     DecodedLogArgs,
     LogEntry,
     LogWithDecodedArgs,