Adds an after suite hook to manually clean Fedora.
Removes a single unneeded set from one spec.  Adds before/after suite hooks that go through and manually delete any object that our tests might be saving to Fedora/the database.  This doesn't seem to slow execution time at all, and is needed because the Fedora test repository does not seem to clean itself between runs.  Note that a more elegant solution almost certainly exists.
Merge pull request #57 from nu-lts/feature/before_after_suite_hooks

Feature/before after suite hooks