initial commit of tests with tox
fixing test; either the old test used to fail, or the error has changed in feedparser
fixing tox testenv properties; adding tox file to manifest
removing print
adding envs for py27 and django 1.3-1.5
locally this doesnt work, but on travis-ci it does...
Merge remote-tracking branch 'sherzberg/testsetup' into testsetup

Conflicts:
	yarr/tests/__init__.py
Add Django 1.6 and South to tox.ini

Add a tox environment which contains Django 1.6, and another which also
contains South so that migrations at least get superficial testing.
This requires using the Django management command to run the tests so
that South's hooks execute.
Remove requirements.txt

This information is already in setup.py, and these packages will be
installed if the installation instructions are followed.

Remove installation of deps from tox.ini, because that could mask
missing dependencies in setup.py.
Set USE_TZ=False when running tests
Merge pull request #39 from twm/testsetup

Tox test setup