Merge branch 'release-0.10' of github.com:learningequality/ka-lite into force_sync
expose a simple endpoint for launching syncmodels, expose a button for launcing that API endpoint
moving button to easy_admin page, fixing debug-only class
slightly better UI with no extra div
Merge branch 'release-0.10' of github.com:learningequality/ka-lite into force_sync
added more useful message, only show button if registered.
removing hard-code of playground URL--don't rush so much\!
Merge pull request #529 from bcipolli/force_sync

Mpilonhle: Expose button to force syncing to happen NOW