And include Don's fix for partial course_id lookup.

cleanup

Updates.

Testing changes.

Testing changes.

asset-index progress state cleanjup.

cleanup

* Add unit test coverage for this "exclusion from tracking" logic
* Exclude based on regex match instead of raw string comparison
* Exclude heartbeat requests from tracking

Also added datadog application to commom django apps and set it to use
a local statsd server by default.

due to the MixedModuleStore pending release, we need to make enrollment start/end dates editable in Studio

STUD-669.

Previously the file upload dialog was PDF- and textbook-specific. The
changes are adding parameters to the FileUpload model for the file
type, and adding an onSuccess callback to the UploadDialog view. Also
moved upload-specific SASS into its own file.

The django_nose it is very useful, even outside the test
environment. For example, it lets you to easily run test from
manage.py without additional changes to the test packages.

Studio: adds in new Sass file for Studio-specific
xmodule presentation and removes full screen control
from video alpha display UI.
Adds jasmine test for subtitles scroll.
Adds tests for caption change height functionality.
Uses gettext wrapper.
Fixes caption change height functionality.
Removes IS_CMS, isCms flags.

Fixes HD button
Disables Fullscreen mode in the Studio
Fixes ui controls bug

Initialize on every page that has a context_course set

https://docs.djangoproject.com/en/dev/ref/settings/#std:setting-ADMINS
https://docs.djangoproject.com/en/dev/howto/error-reporting/

not common.  This ensures that we load the MITX_FEATURES
token BEFORE deciding to disable CSRF.

remove test that csrf middleware is disabled (since we can't seem to reload middleware between tests)

move definitions from setuo into test method

seems like we need to define COURSES_WITH_UNSAFE_CODE in cms.envs.common.py, although cms.envs.common.py imports lms.envs.common (where this is defined).

Replacing the get_request_method function everywhere