Firefox wasn't saving section release times, due to issues with JS Date() parsing.
I've modified the code to make it more explicit around what it should do and how
it should work, which also makes it work better with both Firefox and Chrome.

resets the cms edge redirect to '/'

When Chrome sends the AJAX request to add a user to the course team, it sets the
Content-type to "application/json". However, when Firefox sends the same request,
it sets the Content-type to "application/json; charset=UTF-8". This commit only
checks that the Content-type begins with "application/json", not is identical
to it; that way, Firefox can play, too.

redirects edge landing page to /dashboard

adds TabsEditingDescriptor, pluggen in VideoAlphaDescriptor

more template fixes for faq, press, and help

Hotfix world cloud functionality

Fixed typo of function call. Added comment why it is necessary.

Updates comment
Make Model descriptor class property.
Fix tests

add display_coursenumber and display_organization fields on the CourseModule

adjusting fix for studio drop-down nav in IE9

Limit the rate of logins

template errors

Instructor Dashboard v2 (disabled)

change int to float for student progress display