* moved wallet, server, lib into electrumx main module
* fixed imports and other path references affected by electrumx main package
* fixing formatting to pass the pycodetest on travis
* Implemented electrum_header for BTG to include solution (needed for validation on clientside)
Add RPC_PORT for BTG node
* Added node regtest compatibility
* Updated unittests
* Changed chunksize and regtest rpc port
* Changed bits transfer format to decimal
* Add testnet v3 params and corrected coin name
