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
Added wait for JavaScript when navigating to textbook page
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
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
LMS: removing non production-friendly messages
LMS: revises semantics and styling for dashboard messages
LMS: revises re-verification instruction UI and help text
LMS: revises UI states for verification status in dashboard view
Add hooks for other statuses onto the dashboard