Merge pull request #113 from NIC619/improve_handler_api

Apply PR feedback: replace getattr on known attribute name

Apply PR feedback: use Address type from eth_typing instead of str type

Apply PR feedback: change logger name

Use estimate gas from abi for both constant and non-constant function

Apply PR feedback: populate estimate gas dict directly and fix type hint

Convert exposed address to canonical format

Instantiate LogHandler in ShardTracker instead of passing in an instance

Use estimated gas instead of hardcoded gas limit

Fix #107 mismatch config name and remove annotations in config file

Rename SMCHandler to SMC

Merge pull request #114 from jannikluhn/use-eth-typing

Use types from eth-typing package

Merge pull request #110 from hwwhww/makefile

Add more commands in Makefile