Merge pull request #2309 from edx/jorr/feature/use-xblock-publish-api

Use the publish() api from xblock.runtime.Runtime
Merge pull request #2354 from edx/markhoeber/documentation/LMS-1601

Markhoeber/documentation/lms 1601
Merge pull request #2342 from edx/markhoeber/documentation/stud-1191

Component Duplicate Documentation
Added doc links
Switch dark_lang to database backed configuration
Merge pull request #2294 from cpennington/language-dark-launch

Add the ability to dark-launch languages
Updated internal documentation on MongoDB.

Provided several suggestions what to do if MongoDB
daemon doesn't start.
Merge pull request #2355 from edx/markhoeber/documentation/release-notes-1-28-14

Markhoeber/documentation/release notes 1 28 14
Merge pull request #2344 from edx/jsa/forums-new-thread-attrs

Allow new response pagination parameters to pass through thread model.
Merge pull request #2266 from edx/jsa/forums-response-button

add "Add A Response" button to thread views in discussion tab / inline
add condition - log speed change / loading video
Move doc_url function out of edxmako middleware
make SplitMigrator take a User object, rather than a user ID
first pass on a migrate_to_split Django command
Add some dummy arg parsing tests
happy path unit test
Can't use UserFactory in CMS tests :(
fix test failures: clear loc_mapper cache
move user-finding logic out of command
Added command to delete split-mongo course