* Save errors for courses that failed to load in modulestore
* global staff can see course errors on their dashboard
* put policy loading errors into the error trackers
* add has_access(user, 'global', 'staff'), which is equiv to user.is_staff for now

* with backcompat location /grading_policy.json

* still backcompat with old mode

Remove non-functioning News tab. Enable Instructor tab from Discussion page

Sequential modx/goto_position hits correct multicourse URL

Berkeley Forum Merge

Allowing filesubmissions to specify which files are allowed and require that certain files are present.

New wiki update

Conflicts:
	repo-requirements.txt

Allowing filesubmissions to specify which files are allowed and require that certain files are present.

Kimth/progress hide

html escape errors

Conflicts:
	lms/djangoapps/courseware/views.py
	lms/templates/courseware/courseware.html
	requirements.txt

Remove pystache in favor of our custom version