Tweak guid handling.
Merge pull request #554 from jcushman/dev.guid

Tweak guid handling.
Added basic test coverage for email_confirm() and receive_feedback()
Added an archives fixture so that we can do basic HTTP view testing
Added a couple more test cases for service functions
Our test that looks for bundled assets sometimes fails because the
test can't find anything on disk. Fixed.
Travis fails when trying to bundle up a non-existent file.
Removed test.
We don't need to see the float to the crazyith precision for the
storage space used in our weekly stats email. Adjusted in the
template.
Removed feedbackify js. Fixes #555

Found that the logo in the new feedback modal was missing the
latest logo. Fixed.
Fixed rate limit bug. We weren't looking for the correct header
from our reverse proxy.
Updated ratelimit decorator on defs in common so that we're
looking for our rewritten header.
Bug fix: single link page was loading old templatetag. Removed.
Freshened up stats