fix: add solidity ^0.5.0 support

loomnetwork / erc721x

ERC721x is an extension of ERC721 that adds support for multi-fungible tokens and batch transfers, while being fully backward-compatible.

BSD 3-Clause "New" or "Revised" License

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fix: add solidity ^0.5.0 support #30

Closed anthonymq closed 5 years ago

gakonst commented 5 years ago

UGH I only just noticed your PR after spending time and making it compatible with latest truffle/OZ/solidity. Thanks, closing to merge my PR which has some slight differences...