more flexbile translations added with lables dict
impr unittest
Added six compatibility layer (for Python 3)
Updated requirement (six). Added Python 3 version to build matrix
Updated build virtualenvs
Fix
Fix
More strict coding standarts
Removed unused six.u() call
Unicode fix
Unicode fixes
Fix setup.py for Python 3
Added Python 3.3 build
Merge remote-tracking branch 'remotes/origin/add_label'

Conflicts:
	django_enumfield/enum.py
	django_enumfield/tests/test_enum.py
Rewritten custom labels
Code cleanup, added docstrings
Typo fix
Merge pull request #3 from Orhideous/master

Ported and improved version