* signing prefix added

* Minor improvement

* Successfully tested

* Minor improvements

* Minor improvements

* Revert "Dangling commas are now required. (#1359)"

This reverts commit a6889776.

* updates

* fixes #1404

* approve failing test

* suggested changes done

* ISafeERC20 removed

* conflict fixes

* added examples

* fixes #706

* linting

* fixes #204

* file fixing

* deep bignumber comparison removed

* Update SafeERC20Helper.sol

* Update IERC20.sol

* Update SafeERC20.sol

* Update package-lock.json

* Revert "deep bignumber comparison removed"

This reverts commit 230b27214fc96ab4c990b169bbc15df129bad657.