Updates get_knowledgemap_topics to include all "Topic" level nodes as long as they contain exercises.
Merge pull request #2700 from rtibbles/dropdown_fix

Fixes missing topic bug for coach report: progress by topic
Teacher can export data from their facilities only
Added Tests to check correct facility is selected and option disabled for teacher while exporting data and admin has access to all facilities
Merge pull request #2701 from anuragkanungo/nalanda-rct3

Teacher can export data from their facilities only