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
Convert CAPA inputtype statuses from strings to objects, in order to
simplify css class management and internationalization of status strings
(potentially) displayed to the user.
Add repsonse pagination to inline discussions
Add SHOW_PROGRESS_SUCCESS_BUTTON feature

Show a button at the top of lms/templates/courseware/progress.html if the
lowest nonzero grade cutoff has been reached. Introduce two settings:
PROGRESS_SUCCESS_BUTTON_URL is the href of that button (the course id is
appended); PROGRESS_SUCCESS_BUTTON_TEXT is the text, defaults to
"Download your certificate"
Make the SHOW_PROGRESS_SUCCESS_BUTTON feature more flexible

The button text default is now in the template and i18n-able, a
PROGRESS_SUCCESS_BUTTON_TEXT_OVERRIDE option is offered in settings.
The button url now uses string formatting.
The link to TECH_SUPPORT_EMAIL should have a mailto: protocol !
Temporarily disable CAPA problem "Check" button.

- update appropriate jasmine tests so that stubbed $postWithPrefix
respects a subset of jQuery promise API.
- add customization for checking state.
- display checking state while button is disabled.
- ensure checking state lasts for at least a second.
Add my name!
Allow import of native XBlocks in draft
Added tests for importing a pure XBlock
Remove double quoting.
Disable flaky test.
Merge pull request #3245 from edx/oleg/fix-doublequoting

Fix doublequoting. BLD-812.
Merge pull request #3247 from edx/anton/disable-flaky-video-test

Disable flaky acceptance test.
Updating ORA2 requirements for patch fix
Merge pull request #3242 from edx/will/studio-import-private-fix

Allow import of native XBlocks in draft
Merge pull request #3248 from edx/sanchez/ora2-2014-04-08

Updating ORA2 requirements for patch fix
Updating ORA2 requirements for patch fix
Disable flaky acceptance tests.
Update testing.md file.

How to better debug acceptance tests in local Vagrant dev.