Tweak guid handling.
updated images, updated institutions
Removed unused style block (was causing build to fail becaused
it referenced a non-existent image)
Removed another coupple of broken image references.
Freshened up stats
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.