Merge pull request #2 from d11e9/master

Fixed indentation on imported libs
Merge pull request #3 from d11e9/master

Improve EthString
Merge pull request #4 from d11e9/master

Import ethstring and bigint
Merge pull request #5 from d11e9/master

Make getKeys consistent
Merge pull request #2 from projectdnet/master

Pull from origin