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
Wording for batch beta email add with autoenroll (LMS-2551)
Added watchdog to Paver requirements
bugfix: allow multiple choice questions to display hints
BLD-717: MultipleChoiceResponse i18n.
Merge pull request #3414 from edx/anton/i18n-choice-response

MultipleChoiceResponse i18n.
DOC-264, clarify that students can opt out of email
Merge pull request #3407 from edx/ahodges/documentation/DOC264

Ahodges/documentation/doc264
Merge pull request #3397 from edx/sarina/lms-2551

Wording for batch beta email add with autoenroll (LMS-2551)
DOC-279, correct add discussion category steps

also removed "static" for pages
Merge pull request #3405 from edx/ahodges/documentation/pythonsnippets

DOC-279, correct add discussion category steps
Update codejail to enable logging
Add new languages from Transifex
Merge pull request #3415 from edx/dcs/codejail-version

Update codejail to enable logging
Update translations (autogenerated message)
Merge pull request #3416 from edx/sarina/042214-language-update

Sarina/042214 language update
Release for Apr 22, 2014
Correct ordering of Segment.io identify and page calls
Fixed path of tinymce.js.

LMS-2554