API cleanups and some renaming.
API cleanups and some renaming.

arkpar/solidity,LianaHus/solidity,gluk256/solidity,shahankhatch/solidity,ruchevits/solidity,chriseth/solidity-doc-test,douglas-larocca/solidity,ruchevits/solidity,ethers/solidity,chriseth/solidity,debris/solidity,ruchevits/solidity,vaporry/solidity,ruchevits/solidity