PLAT-295

Change name of method to clear up confusion with the access.has_access method.

fix for flaky test

fix for broken test

fixed quality violation

This is a fix for
https://openedx.atlassian.net/browse/PLAT-619
added custom CommandError messages for invalid syntax and
invalid course keys.

* Changed certificate_id to configuration_id
* Fix for acceptance test faiiure
* Add waits to bok choy tests

fix for flaky test

Skipped 'print' statement violations, as print() is Py3k syntax.

TNL-2619

This is a fix for
https://openedx.atlassian.net/browse/PLAT-324
added custom CommandError messages for invalid course key.

This reverts commit c94abd27.

ECOM-1648

This reverts commit c94abd27.

TNL-2435

address quality violation

* updated the flags for social media sharing
* added facebook feed ui to share public url
* update the condition logic
* update the code as per suggestion and added pick new style for share buttons
* update the css class reference
* update the bok-choy test
* updated description and some text touch-ups
* moved the JS related to facebook into separate location
* js formatting
* Add trailing comma per chrisndodge
* Add wait to fix flaky test...maybe

This is a public, versioned, RESTful API for importing and
exporting full course content. The code was initially ripped from the
existing import/export API in the CMS contentstore djangoapp and wrapped
in Django Rest Framework view classes. It's a new djangoapp in
the openedx directory which is largely an abstraction off the CMS
Import/Export views.

This PR includes configuration changes. Most notably, Studio is
configured to serve the OAuth2 provider alongside the LMS.

This is the initial thread on the code list:
https://groups.google.com/forum/#!msg/edx-code/DmnHWmly25A/ZqjD1zb4o7oJ

And this thread contains another description of the changes:
https://groups.google.com/d/msg/edx-code/6dP9SEKsmqQ/Pvyn8fBDx68J

There are a numerous non-covered lines, all of which are missing
coverage in the CMS API this was ported from. They're mostly error
conditions, such as handling of multipart file upload errors.

Some XBlock classes were being (randomly) incorrectly loaded. This was
due to an error in the way the XBlock.load_class method was called.
Error was happening randomly because of the cache mechanism in the class
loading method. (see PLUGIN_CACHE)

Display warning message on course outline in Studio when course contains deprecated features/components

TNL-2303

force save "download_video" field if not set

set timezone to UTC explicitly

fixed broken test

changes based on feedback on 6/24

fixed broken unit test after feedback changes

added more checks and updated tests

fixed broken bok choy test

Fixed pylint quality error

trying to fix pylint quality error

Revert the removal of hint templates.
Move the 'tab' attribute in the new-problem yaml
files out one level, out of the 'metadata' section.

Extends the common capa response types (string, numeric, multiple
choice, checkbox, dropdown) with feedback and hint
capabilities. "Feedback" refers to feedback shown to the student when
they check the problem, looking at their specific answer. "Hints"
refers to a Hint button in LMS which the student can click at any time
to see hints for that problem. The implementation extends the markdown
syntax to include feedback and hints. There are new Feedback-and-Hint
specific templates in Studio when the author clicks to add a new
problem.

no need to create zero by in memory images

added contents to test upload files

TNL-2384

Refactored Studio's PagingView to use RequireJS Text and moved it
to common so that it can also be used by LMS.