* feat: mStable
* deploy and CHANGELOG
* `@0x/contracts-utils`: Add more testnet addresses.
* `@0x/contract-addresses`: Deply Mstable on testnets
* `@0x/contract-addresses`: Remove testnet deployments of mStable :-)
* move `erc20-bridge-sampler` into `asset-swapper`
remove `DevUtils` dependency from sampler contract.
* `@0x/asset-swapper`: Add ERC20BridgeSampler support for validating orders in maker fees denominated in non-maker assets.
`@0x/asset-swapper`: Add tests for `NativeOrderSampler`.
* `@0x/asset-swapper`: Return `0` sample if native order asset data is unsupported.
* `@0x/asset-swapper`: Fix failing test.
* feat: ExchangeProxy FQT fruit rollup (#2645)
* feat: Optimize Bridges in ExchangeProxy
* compile and most work
* work around to trust the delecall contract
* force allowances
* Update Kyber/Eth2Dai bridges
* Remove memory state where not required
* cleanup
* Combine Bridges into one adapter
* mixins
* refactor out ZeroExBridge
* move out interface
* comment out hacks
* update migrations
* remove simbot hacks
* AdapterAddresses and mStable
* Share constructor arg
* fix migration
* Remove whitespace
* `@0x/contracts-zero-ex`: BridgeAdapter -- revert if bridge address is 0.
* `@0x/contract-addresses`: Deploy FQT.
Co-authored-by: Lawrence Forman <me@merklejerk.com>
Co-authored-by: Lawrence Forman <lawrence@0xproject.com>
* update ganache contract addresses
* fix: asset-swapper empty batch call (#2669)
* update ganache contract addresses
* fix: asset-swapper prevent empty sampler batch call
* add sampler to migrations
* change migrations version
* Use contract-wrappers and artifacts
* remove extra data
* remove deps, set sampler to NULL_ADDRESS
* all the exports
* noop sell rate too
* update ganache contract addresses
Co-authored-by: Lawrence Forman <me@merklejerk.com>
Co-authored-by: Lawrence Forman <lawrence@0xproject.com>
* Detect Bridge orders and fill direct
* Mark as external for try/catch
* Initial tests
* discuss: Continue if protocol fee insufficient
* Emit ProtocolFeeUnfunded
* put the clamps on taker balance
* feat: GST free and optimize
* fix: low level GST free call
* fix: review feedback
* remove unused return struct
`@0x/contracts-zero-ex`: `bootstrap()` de-registers itself and self-destructs once it's called.
`@0x/contracts-zero-ex`: `bootstrap()` now takes arbitrary call data, but the callee is fixed in an immutable.
`@0x/contracts-zero-ex`: `bootstrap()` caller is fixed in an immutable.
`@0x/contracts-zero-ex`: `bootstrap()` only calls a single target.
`@0x/contracts-zero-ex`: Renamed `BasicMigration` to `InitialMigration`.
`@0x/contracts-zero-ex`: `InitialMigration` is now the bootstrap target and multiplexes to the initial features.
`@0x/contracts-zero-ex`: Add `Migrate` feature and tests.
`@0x/contracts-zero-ex`: Re-organize contract locatins (remove `interfaces` folder).
