fix header rendering problem
Merge branch 'development' of github.com:Coursemology/coursemology.org into dev/raymoond_dev
Merge branch 'development' of github.com:Coursemology/coursemology.org into dev/raymoond_dev
fix date picker
forum participate fix and UI improvement
forum participation page both name and count link to summary
duplicate question for training
allow TA to do duplication
Merge branch 'development' of github.com:Coursemology/coursemology.org into dev/raymoond_dev

Conflicts:
	app/assets/stylesheets/custom.css.scss