test updates to get things working.  caching 'monkey-patching' no longer works... so just destroy the cache of the test machine.
test failures due to utils/videos.py caching its own paths.  shift over to 'shared' method
Merge branch 'release-0.10' of github.com:learningequality/ka-lite into test_updates
Merge pull request #584 from bcipolli/test_updates

Test updates and more utils => shared refactoring