Releasing v1.5.3 with new custom predicate
What's new ?
This release includes new predicate implementation named ChainExitERC1155Predicate. Read more about it https://github.com/thesandboxgame/sandbox-smart-contracts/blob/doc/matic-predicate/documentation/drafts/matic/chain_exit_erc1155_predicate.md.
PR #77 had necessary implementation.