* added all the uint types supported by solidity
* fixed some incorrect indentation
* Added missing space around "+"
* added some proper exceptions and included all the integer parameter types
* improved exception handling
* missing check
* added preliminary version of unit test for ABI
* x
* half finished
* tes
* fixes
* docstr
* Raise exception only once
* cc
* Fix merge bug
* fix merge bug in tests
* Fix bugs introduced in merge