fix: travis setup.py requirements
fix: travis setup.py requirements

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