mucking around with loadtesting
Merge branch 'release-0.10' of github.com:learningequality/ka-lite into load_testing_fix
simplified url logic, added clearfix class from khan-site (thanks @jamalex)
Merge pull request #543 from bcipolli/load_testing_fix

mucking around with loadtesting
of all things, this is causing downstream merge conflicts.  this was code reviewed and updated, all updates were test code.  No reason not to merge and save myself a tiny bit of pain.