As the code in this .js will break the url's integrity when there is already a query string inside the video source's url and cause the url to be invalid in some cases (for example, when working with a url from Windows Azure's Media Service, the appended '?' will cause the url being invalid).
I modified the code by first checking whether the url has already had a query string, and if so, then use '&' instead of '?' to prevent the breaking, and it works for the url from Windows Azure's Media Service.

1. In video_module.py, rewrite the get_ext() function to use the built-in urlparse module to parse the input filename first and then get the file's extension name from the parsed path.
2. In test_video.py, add two test cases (one with query string while the other without) in order to test the rewritten get_ext() function.

Sometimes the video url may look like 'http://abc.com/path/video.mp4?xxxx'.
(For example, the Windows Azure's media service will offer such type of url.)
The original code in video_module.py will produce 'mp4?xxxx' instead of 'mp4'
as the extension of a filename for such type of url, and therefore the video
will be non-playable. The fix here uses the built-in urlparse module to retrive
only the path component from a url and therefore the extension 'mp4' will be
correctly fetched.

further explanation on entry_points

Fix URLs for static resources

Enable/disable unicodes in course id's

Fix LMS-2349 (Progress page broken for pure xblocks)

Markhoeber/documentation/ca reorg real

This fixes LMS-2387 by removing a resize call that prevented scrolling.

[LMS-2349]

This is known to be broken.

[LMS-2349]

It also enables syntax highlighting for matlab input fields, which
wasn't previously enabled.

Dhm/meld pretty factory

Fix donwload subs for non youtube videos and non-en language.

Internationalization fixed for error msg on staff grading page.

LMS-2195

Update translations (autogenerated message)

Edits from Alison's initial review

DOC-34

Consolidate information from data.edx.org, Appendix E, and problem types

Improve dump_course_ids test for unicode course_ids

Check for status in test.
Add test for track url.
Fix test to use cookie.
Use download_track in feature file.
Add new tests for get_transcript.
Add html5 test.
Add content check.
Add tests for available_translations dispatch.
Disable flaky cms test.
Add  w/o english transcript tests.
Add to changelog.

Fixed confusing docstring

missed rst

CSS changes regarding TinyMCE in annotation tool & accessibility issues

Support publishing of nested xblocks

Allow uppercase transcripts srt extension.

Fix split_test xblock so that it can render in Studio

Added internal refs to help researchers find the data format files