Fixed homestead diff adjustment change
Fixed homestead diff adjustment change

karlfloersch/pyethereum,ckeenan/pyethereum,pipermerriam/pyethereum,shahankhatch/pyethereum,karlfloersch/pyethereum,shahankhatch/pyethereum,pipermerriam/pyethereum,ethereum/pyethereum,ethereum/pyethereum