Split that one into two different ones: for testing and stable.
Add two new bodhi conglomerators.

- One handling when different users submit updates for the same package.
- Another handling when the same user submits updates for different pkgs.
Re-namespace stuff into a submodule.  There's going to be a lot of these...
Bodhi conglomerators for comments on updates.
Update docstrings as per review.
Merge pull request #137 from fedora-infra/feature/more-bodhi-conglomerators

More bodhi conglomerators.