Merge remote-tracking branch 'refs/remotes/origin/master'

Fixed address starts with 0x in keystore v3 #279

fix the missing first topic for EventFilter #278

Fixed SolidityFunction encoding for dynamic arrays #276

Fixed Web3Personal.signPersonalMessage returns an unexpected signature …

…#274

Address.assemble errors now runs in default queue instead of main

ObjectiveC Update!

W3 classes now automatically casts to swift classes in transaction arguments
Added SolidityFunction support
Added hex string to data and data to hex string functions
Added W3UInt init with decimals
You can now easily add accounts with mnemonics and private key using [web3 addAccountWithMnemonics:password:] and [web3 addAccountWithPrivateKey:password:]

Updated schemes

Merge branch 'master' into develop

Added CryptoSwift dependency

Moved BlueCryptor library