refactored receive chain into class
refactored receive chain into class

harlantwood/pyethereum,ethermarket/pyethereum,ckeenan/pyethereum,shahankhatch/pyethereum,karlfloersch/pyethereum,pipermerriam/pyethereum,ethereum/pyethereum,vaporry/pyethereum,holiman/pyethereum,ethers/pyethereum,shahankhatch/pyethereum,inzem77/pyethereum,ethereum/pyethereum,jnnk/pyethereum,ddworken/pyethereum,pipermerriam/pyethereum,karlfloersch/pyethereum