Fix for #292: Allow selecting non-math topics with exercises for viewing coaching data.
Merge branch 'develop' of github.com:learningequality/ka-lite into 292
Getting tests to run.
Adding coach report API tests.
Fix code based on tests :)
Merge branch 'develop' of github.com:learningequality/ka-lite into 292

Conflicts:
	kalite/testing/__init__.py
Merge pull request #1664 from bcipolli/292

Fix for #292: Allow selecting non-math topics with exercises for viewing coaching data.