a partial descriptor. 
Use 400 not the contrived 515 for malformed html.

Addressed some of Christina's review comments.

speeds and don't use the video/default.yaml format.

r.don

The scss junk comes from trying to sync w/ several branches. I believe
it's right but mostly unnecessary (surprised it showed up).
Debugged the merge w/ cms-master
Fixed grace period to be absolute time difference not a date on the
client side.

Add unit tests.