Clean up PyFlakes warnings and errors on Djblets.
Review Request #5270 — Created Jan. 16, 2014 and submitted
Clean up PyFlakes warnings and errors on Djblets.
This goes through and cleans up the warnings and errors reported by
PyFlakes. Most are harmless, though there were some error messages
referencing an invalid variable for extensions. That variable and the
accompanying part of the message have been removed.
Unit tests pass.
PyFlakes was happy.