bytecode matching with opengsn's mainnet gsnforwarder

This release compiles the gsnforwarder contract so that it is bytecode identical to opengsn's published forwarder contracts on mainnet and other networks.

v0.1.0

Initial release

key use fixes

key handling (#6)

* --dev flag replaced with --deploy flag
* relayer executable now requires a key file
* various key and tx reuse issues in tests fixed

version string fixes

v0.0.3

fixes for version string

Initial development-only release

executable polish (#4)

cleaned up the executable build adding a verision and signal handling