BLD-1057: Fix Video player in FF.
Modified ssl certificate authentication to handle next redirection
Makes small changes in lms and cms both so that user's go to the
original page they intended to if they weren't already logged in
Fix infinite redirect loop on logout caused by django caching
Merge pull request #2768 from carsongee/cg/ssl-next-url

Modified ssl certificate authentication to handle next redirection
Merge pull request #3643 from edx/anton/fix-video-in-ff

Anton/fix video in ff
Fix acceptance tests.
Merge pull request #3681 from edx/anton/fix-video-tests

Video: Fix acceptance tests.
Merge remote-tracking branch 'upstream/master'

Trying to update my fork with edx-platform changes