Merge pull request #143 from pulp/rbarlow_remove_cancel_publish_test

Removing a non-deterministic unit test. We have a Rally task to reimplim...
Merge pull request #141 from pulp/rbarlow_test_rpms_file_scheme

Rbarlow test rpms file scheme
Replace all live http:// tests in test_distributions.py with file:// tests.

I also made some PEP-8 fixes.
Merge branch 'rbarlow_workaround_github'