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

Bug: LMS-1363
BLD-205: fix total count.
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
Wire up new statuses onto the dashboard.

LMS-1133
Add in human-readable text for error messages.

LMS-1133
Hide certificates section if enrolled as audit.

LMS-1133
Add an upgrade parameter to the verification views.
Add in new hooks for the dashboard into the upgrade path.
Add acceptance tests.
LMS: preps track selection view for upgrade cases