remove instances of @edx.org email addresses in our default settings

Bug: LMS-1363
Fixing accessibility bug where users could not tab through on wiki

LMS-1307
updating boto to get boto.elasticache.layer1
Ensure that peer grading modules whose linked problem is removed change over to panel mode
Added wait for JavaScript when navigating to textbook page
Merge pull request #1524 from edx/rc-peer-linking

Ensure that peer grading modules whose linked problem is removed change ...
BLD-205: fix total count.
Clean up imports
Give a better error message when capa recieves an unknown action
Make sequence module use ajax_url properly
Studio: resolves issue where datepicker UI had no background-color
Merge pull request #1532 from edx/talbs/fix-studio-datepicker

Studio: FIX - Datepicker UI Background
Merge branch 'release'
Merge pull request #1252 from edx/e0d/boto-upgrade

updating boto to get boto.elasticache.layer1
Add barebones reverification flow.
Add tests for some of the new views.
Add new user_status functionality to PhotoVerification.
Put in a dummy verification status into the dashboard.
Fix settings for verification statuses on the student dashboard
LMS: adds in styling and base UI for reverification flow