Update khan/ tempaltes
khan/ Use default ns
Add lesson_id unit_id to exercise model
khan/ comment out dropdown
TT/ Update templates with bootstrap
Update khan exercises update
Revert CSV format with , insetead of ;
Add assets/fonts url path
Add lesson/unit kinds
Update app.yaml
Update coure files
Update templates and Khan exercises events though iframe
Update khan-templates
Update templates and progress
Add taaltransfer category
Khan exercises update