Added comment to getUserMedia call in photocapture.js
Doc: update xblock publish() function signature
Add in metric tracking to xqueue.

Covers external grading and certificates.
Changed wording for setting up ORA question.
ORA-351
Merge pull request #3100 from edx/waheed/ora351-change-wording-for-setting-up-ora-question

Changed wording for setting up ORA question.
BLD-950: Update captions logic on front-end.
Merge pull request #3128 from edx/anton/transcript-generation

Update captions logic on front-end.
Merge pull request #3141 from edx/db/doc-xblock-signature

Doc: update xblock publish() function signature
Merge pull request #3138 from edx/db/add-getusermedia-note

Added comment to getUserMedia call in photocapture.js
Converted XModule to JavaScript. Added Jasmine tests.

Part of the process for removing CoffeeScript from
edx-platform dependencies. Covering XModule with JavaScript
Jasmine unit tests.
Merge pull request #3144 from edx/diana/monitor-xqueue-graders

Add in metric tracking to xqueue.
Merge pull request #3126 from edx/valera/convert_xmodule_to_javascript

Converting XModule module to JS.
Make new-style chinese language codes works for translation

The old-style chinese language codes used in django 1.4 series are now deprecated, as discussed here:  https://code.djangoproject.com/ticket/18419.
Although majority of browsers still use the old-style language codes, some new browsers such as IE11 in Windows 8.1 start to use the new-style names instead of old-style ones which makes the current chinese translations of edX can't work properly under these browsers.
As there is no easy way for edX to change a higher version of django, I think we could do some mapping here so that the users who use IE11 in Windows 8.1 or other browsers that use the new-style names can view correct translations.
Also, this fix will make users who use one of the language codes:  zh-hk ,  zh-sg  and  zh-mo  can see the correct translations.