Etheno v0.3a1

Bugfix and dependency update release

Changed

• We are now using ganache@7.3.2 and greater instead of ganache-cli@6.x for running Ganache
• Using the latest Flask@v2.1.0 version

Fixed

• Fixed #101
• Fixed a bug that occurred when a JSONRPCError was being logged
• Fixed a bug that prevented Ganache from being used from within a Docker container

Removed

• Removed Manticore integration and all associated command-line parameters
• Removed Echidna integration and all associated command-line parameters
• Removed examples/ folder since it is outdated and uses deprecated features