make embargo template theme-able

Use "Stanford-style" theming to enable you to put your own embargo
notice up.
missing themed embargo page fails safely to unthemed
04/09/2014 Release Notes

DOC-249
Serve video HTML5 sources locally for acceptance tests
Update Running Acceptance Tests Bok_Choy
Update testing documentation
Merge pull request #3331 from edx/zoldak/serve-test-videos-locally

Serve video HTML5 sources locally for acceptance tests
Fix duplicate save and cancel buttons in Studio

STUD-1531

Also add support for refreshing the modal on custom save
Merge pull request #3339 from edx/andya/fix-duplicate-buttons

Fix duplicate save and cancel buttons showing when editing xblocks
Documentation for HTML editor upgrade

STUD-1428
Merge pull request #3022 from edx/markhoeber/documentation/STUD-1428

First Draft - Documentation for HTML Editor Changes
Release notes 4-15-14
DOC-253, adds View in Studio button to LMS
Merge pull request #3351 from edx/ahodges/documentation/DOC253

Ahodges/documentation/doc253
Merge pull request #3257 from edx/markhoeber/documentation/doc-249

04/09/2014 Release Notes
Reorganized, resequenced, removed redundancies
Merge pull request #3364 from edx/ahodges/documentation/changelogrecovery

Reorganized, resequenced, removed redundancies
DOC-282, table width must be 80% for change log
Merge pull request #3365 from edx/ahodges/documentation/DOC282

DOC-282, table width must be 80% for change log
Merge pull request #3319 from edx/raees/update-running-acceptance-tests-bokchoy

Update Running Acceptance Tests Bok_Choy