Use beanbag-tools for much of the Review Board release script.
Review Request #6023 — Created June 23, 2014 and submitted
This makes use of the moduls found in beanbag-tools to perform the
release, greatly simplifying the release script. Now, the release script
just defines the order of operations, and any custom building that needs
to be done.
Disabled actually announcing and uploading the release, and went through
the release process. All builds successfully built.