turning off warnings to pass tests on travis.
Currently we're getting this error:

/home/travis/virtualenv/python2.7/local/lib/python2.7/site-packages/pkg_resources.py:1054: UserWarning: /home/travis/.python-eggs is writable by group/others and vulnerable to attack when used with get_resource_filename. Consider a more secure location (set with .set_extraction_path or the PYTHON_EGG_CACHE environment variable).

This should suppress this and give us the correct empty stderr.