Add toPayload to contract methods

5.1.0

feat: add toPayload to contract functions (#73)

5.1.1: fix: payable calls for solidity >= 0.5 (#59)

* fix payable calls for solidity >= 0.5
* test: add escrow integration

5.0.1

• Fixes bugs with checksum addresses and adds more validations that throw to make dApps more resilient.
• Update dependencies versions.

5.0.0

v5.0.0

fix: making eth-connect a decentralandLibrary

5.0.0

5.0.0