Refactor tab tests
Fix for bug BLD-359: Unnecessary focus outline around Video Player.
Merge pull request #1107 from edx/dhm/bug_attrs

Ensure location is valid before trying to fetch
Merge pull request #1115 from edx/diana/verify-pep8-pylint

Clean up some old pep8/pylint violations
PdfViewer: Added missing link to compatibility.js
Knock 10 more seconds off the acceptance tests.
Merge pull request #1120 from edx/valera/fix_for_unnecessary_outline_around_video

Fix for bug BLD-359: Unnecessary focus outline around Video Player.
Merge pull request #1123 from edx/zoldak/speedy-cms-acceptance

Knock 10 more seconds off the acceptance tests.
Merge pull request #597 from edx/feature/msteele/scrollup

Add scroll-to-top when switching verticals from bottom nav buttons.
Fix intermittent failure in OpenID test
Fixed js coding style for pdf arrows toggle
Merge pull request #1060 from cpennington/lazy-textbooks

Make Textbooks properly lazy
Merge pull request #1126 from edx/will/fix-openid-test

Fix intermittent failure in OpenID test
Merge pull request #1112 from edx/will/shard-acceptance-tests

Added tags to acceptance tests to define multiple shards.
Just write the loc name as the key in the policy file
Test importing exported course over a new course
fix a11y error in help modal
edx.org/LMS: revises graphic-based login and registration banner text to render with system text
LMS startup needs to initialize the modulestores so that we don't lazy load all of the XML courses on first HTTP request
Add the ability to set expiration dates on course modes.