* replace TSLint with ESLint in contracts-utils
* also contracts/treasury
* also do test-utils
* yarn fix
* fix stuff yarn fix could not fix
* eslint erc20 contracts folder too
* changelogs
* actually zeroex was a different pr
* PR #589 in changelogs
* whitespace
* prettier
* Update package.jsons to latest tools packages
* Skip tests relying on gasPrice > 0
* Yarn.lock
* Fix linter
* Update Balance checker, new ganache gets more ETH
* Fix new Ganache insufficient assertion string
* Temporarily set QuoteRequestor to skip
* Fix headers Axios now requests with