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.
Fix a decode error in course_about.html and make some string translatable

The strings in share links should be in unicode, otherwise when the name of a course is non-ascii, it will generate a decode error.
And some of these strings is actually translatable, so they should be collected into mako.po.