Reviewed and updated all on-page panel help text in Studio for clarity,
consistency, and brevity.  Updated template HTML files to change text

STUD-924

Conflicts:
	cms/djangoapps/contentstore/views/item.py

Oleg/fix rearrange bug in problems

Revert "more granular transactions in grading [LMS-1480]"

This reverts commit 19dd49f3.

Disabled test making external calls to YouTube

Fix misspelled word in test name

Removed old release script

Added explicit wait for payment page to load

Improve memory profile during course grading runs

Revert "Don't allow users to enter video url's in http."

Three more A11Y fixes (medium priority ones).

Adam/more granular grading transactions

restful course_info access

This centralizes the logic for group membership, and means that we
don't need to make queries to find out whether the legacy groups names exist.

- Make email field in forgot password modal aria-required = true
- Added Transcript skip links to both before and after the transcript
- Add language code to main.html so that screenreaders know what language/region to speak for

html page and update access use 2 different urls
GET update can get an individual update
STUD-944

remove field_data_cache from grades.grade and grades.progress_summary

cleans grading code by adding wrappers

Silence noisy loggers in the devstack

Certificates Dashboard Updates

Added wait for JS before clicking nav menus

Disabled LaTeX acceptance test

Stricter permissions for the wiki

Video: Fix speed menu when YouTube is unavailable.

Fixed intermittent issue with course date acceptance test

Jbau/fix/remove revision from middleware

LMS-1355