State integration test. Fixes to the FatTrie.
State integration test.
Fixes to the FatTrie.

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