CSV Reporting of Shopping Cart Purchases, with tests

Disabled another video test that failed in master

Studio: FIX - Italicize in xmodule/block previews

STUD-963

Studio: FIX - correcting hiding state of notification UI for < IE9

Disabled video caption tests that failed in master

Changed unit identifier to be readonly, not disabled

Restful api for course advanced settings

Update course_navigation.html #os

STUD-948

Fix unique vertical url + add test

STUD-979

STUD-815

LMS: Add Collapse/Expand Icon to Dashboard Upsell UI

Upgrade coverage to 3.7

Update mode appropriately when user enrolls

STUD-863

Make remaining dialogs in wiki accessible.

The "mode" was remaining unchanged when a student unenrolled & re-enrolled in a course--i.e., someone who was verified when first registering would still be verified when unenrolling and re-registering in audit mode.  This commit fixes this problem.

LMS-1526

All the dialogs in the wiki are now accessible to screen readers.

Also, the "Switch to selected version" button did the odd thing of
reloading the page with the new version selected, but inside a dialog.
That is now fixed.

The merge dialog has a warning that looks kind of funky still, but you
can read it, unlike the previous code.

LMS-1337

Broken image in Studio component help sidebar

Merge rc/2013-11-21 to master

STUD-981

Revert PR 1711; disabling JS tests again

Refunding CertificateItem now marks parent Order refunded as well

Convert component.py to use RESTful URLs.

"as_published" changes I previously put in, as now we
are not adding @draft to locations converted from locators.

STUD-844

Enable all video Jasmine tests

BLD-463

Add error recovery to inline discussion loading

Jarv/verified certs