Add nose.cfg to specify default args for nosetests
Use tox for testing
Remove unnecessary requirements.txt file
Fix urlencode import in Python 3
Fix range/xrange in Python 3/2
Remove deprecated commands library (removed in 3)
Test against Python 3.4 with tox
Ignore eggs .tox dir and coverage.xml from git
Fix broken test
Note Python 3 support in setup.py
Merge pull request #6 from treyhunner/support-python3

Add support for Python 3