TNL-5898

* add feature updating video in api

* make update video endpoint

* fix tests

* add tests for update_video

* update update_video test

* check updated video is Video object, update args doc

* update test cases for update_video

* update docs

Added basic readme

Add an OEP-2 compliant openedx.yaml file

Jibsheet/dont use using

This hardcoded the db_alias fetched from schema_editor and forces django
to try and migrate any second database you use, rather than routing to
the default database.  In testing a build from scratch, these do not
appear needed.

Using using() prevents us from using multiple databases behind edxapp.

update django-oauth2-provide version

TNL-3820

upgrade to django 1.8

Convert the data migration to a Django migration

Revert "upgrade to django 1.8"

upgrade to django 1.8

Update Django rest framework

* Upgrade Django Rest Framework to version 3.1
* Add an external library for OAuth authentication (moved out of DRF core)
* Add a test case for updating course IDs associated with a video.
* Point to fork of oauth2 lib

Add regression tests in preparation for the Django Rest Framework upgrade

update django-nose

MA-844 Support sorting parameters in get_videos_for_course

PLAT-612: Fix VAL error on re-import

MA-410 Add course_id on import for existing VAL entry.

Add XML export and import API functions

These will be used to support export/import of courses containing video
modules that rely on VAL being populated. This does not allow updating
a video (including adding encodings) via import.

JIRA: MA-110

Added missing test case for copy_course

Remove Profile fields other than name

None of the fields except profile_name is ever used at present (we don't
even do any validation that the encoded videos added to VAL match the
profile), and the edX media team prefers that the profiles be somewhat
fungible anyway. The motivation for this change is to avoid the need to
sync profile information between systems when doing export/import of
video modules that use Video IDs.

JIRA: MA-110