Added tox.ini for running tests via tox for various Python versions
Include python2/, LICENSE, README.md into dist archive
Added .travis.yml
Added Travis CI badge
Added Python 3.4 to the list of tox interpreters
Fixed different error messages for args count errors in Python 3.2/3.3
Use functools.wraps for changing the wrapper name in overload decorator

This fixes the problem with updating the name of a function via an
assignment to __name__ in Python 3.3 and 3.4.
Merge pull request #28 from vlasovskikh/fix-tests

Fix tests