This reverts commit 1224e341. I've also added
NotImplementedPartitionScheme, which allows deprecated partition types to have
a valid entry point despite being unusable.

TNL-6675

Re-running a course now clones the OrganizationCourse and RestrictedCourse data from the old run to the new run. This will allow administrators to avoid the tedium of manually recreating this data.

TNL-6746

TNL-6744

TNL-6674

This reverts commit 83f2be49, reversing
changes made to 01ed1742.

Introduces a mgmt. command that retrieves course runs from catalog service in order to update marketing urls for the courses found in course metadata cache (i.e. CourseOverview). This also provides an updated utility to retrieve course sharing url.

This is unused, and will no longer be supported on edx.org. Also adds a
DeprecatedModel utility class.

TNL-6126

There are a number of Django Signals that are on the modulestore's
SignalHandler class, such as SignalHandler.course_published. These
signals can trigger very expensive processes to occur, such as course
overview or block structures generation. Most of the time, the test
author doesn't care about these side-effects.

This commit does a few things:

* Converts the signals on SignalHandler to be instances of a new
  SwitchedSignal class, that allows signal sending to be disabled.

* Creates a SignalIsolationMixin helper similar in spirit to the
  CacheIsolationMixin, and adds it to the ModuleStoreIsolationMixin
  (and thus to ModuleStoreTestCase and SharedModuleStoreTestCase).

* Converts our various tests to use this new mechanism. In some cases,
  this means adjusting query counts downwards because they no longer
  have to account for publishing listener actions.

Modulestore generated signals are now muted by default during test runs.
Calls to send() them will result in no-ops. You can choose to enable
specific signals for a given subclass of ModuleStoreTestCase or
SharedModuleStoreTestCase by specifying an ENABLED_SIGNALS class
attribute, like the following example:

    from xmodule.modulestore.tests.django_utils import ModuleStoreTestCase

    class MyPublishTestCase(ModuleStoreTestCase):
        ENABLED_SIGNALS = ['course_published', 'pre_publish']

You should take great care when disabling signals outside of a
ModuleStoreTestCase or SharedModuleStoreTestCase, since they can leak
out into other tests. Be sure to always clean up, and never disable
signals outside of testing. Because signals are essentially process
globals, it can have a lot of unpleasant side-effects if we start
mucking around with them during live requests.

Overall, this change has cut the total test execution time for
edx-platform by a bit over a third, though we still spend a lot in
pre-test setup during our test builds.

[PERF-413]

add flag DISABLE_LIBRARY_CREATION

add comma

use CourseCreatorRole to determine if user can create a library

add disable library creation feature flag

Conflicts:
	cms/djangoapps/contentstore/views/course.py

ENABLE_CONTENT_LIBRARIES flag

check for course creator role for library creation

Conflicts:
	cms/djangoapps/contentstore/views/course.py

add unit tests

make check of creation of library a true/false for forntend, add security in api call, clean tests

update tests

fix docstring of tests

fixed quality violation

fixed broken unit test and quality violations

Feedback changes and unit test to assert libraries are visible to non staff users too

fixed quality violation and feedback changes

Previously, retry() was never called, so the task was never retried despite
defining several retry-related variables.

It should help catch unicode encoding problems earlier.

This also updates python-saml dependency to a version that includes a
patch for unicode strings.

FEDX-176

ECOM-4890

TNL-4670

When releasing the versioned assets work, we stumbled on a problem with old pickled
versions of the StaticContent objects residing in cache, which triggered a bug in the
code. Not wanting to blow away all cached items, we ended up having to revert and add
in some backwards-compatible helper code to ease the transition.

With this, we'll now utilize the version argument that Django's caching interface
allows, in conjunction with a constant value that can be modified when breaking changes
are being made, to let us gracefully ignore older cached course assets.

This reverts commit 9967b6fd.

We're seeing errors in NR from objects read out of the cache lacking the
'StaticContent' object has no attribute 'content_digest'
File "/edx/app/edxapp/edx-platform/common/djangoapps/contentserver/middleware.py",
    line 70, in process_request

This reverts commit 849ebc5f.

This commit "undoes"a previous hotfix, and allows a cms course_publish
signal to trigger a block_structure update_course_in_cache task, which
is run on an lms worker queue.

Changes:
    -exposes ALTERNATE_QUEUE_ENVS
    -adds routing layer in celery.py
    -moves prior dev_with_worker settings file to devstack_with_worker
    -moves course_block api functionality into openedx/core/djangoapps/content/block_structure