Update to the FAQ page

Feature/vik/add staff grading notifications

Feature/vik/add peer grading notifications

the right information for peer grading

Temporary workaround to our bizarre jenkins/numpy issue.  

Remove circular dependencies that connect student.models and django_comm...

Conflicts:
	common/djangoapps/student/models.py

added problem weight description

Feature/alex/gst mitx

Upgrade to instructor dashboard: enrollment, offline grades, remote gradebook

the beginnings of peer grading.

with the way shiningpanda works but I can't see any reason why.

Vik/modify rubric input

Bugfixing. Refactoring. Removed readonly check for text edits. Styling of text edits with jQuery UI.

Removed unnecessary comments. Added feature to update element either on "change" or on "slide" event.

Fixed bug: jQuery slider default change event name is "slidechange", and it behaves a bit differently than "slide" event.