[PERF-346] Add a second version component to versioned course asset URLs

This version component reflects the "version" of the StaticContent
objects which we cache server-side.  If the layout of those objects
changes between releases, errors occur when loading them from cache.

By using a separate version value, which can be incremented on its own
after a change has been made to the StaticContent class, we can avoid
loading older cached content and in turn take advantage of these changes
faster, without needing to intervene operationally.

AC-521 fixes 'data-table' ignores

Move deprecating of XBlocks to new XBlockConfiguration model

Move disabling of XBlocks to new XBlockConfiguration model

Updated to check and ensure the progress Detail is a string before lo…

TNL-4723

Added basic JS test to check for progress with integer detail

Added another test with a non-string value to force the failure state with data returns a non-string value

Removed test with unrealistic int input for progress_detail

Cleaned up duplicate code in renderProgress tests

[TE-1511] Make --with-xunit(mp)? and --xunit(mp)?-file match in all test suites

Update translations (autogenerated message)

Fixed CCX coach dashboard access issues

Add OpenStack Swift support

Update the django-wiki version number.

Revert "Remove receipt page links' bottom borders"

This reverts commit 01e21049.

quiet some noisy logs

Added author

AC-520 fixes `section` ignores

Change IRC references to Slack

AC-518 updates `button-name` todo; needs TinyMCE work

Replaces settings value.
TNL-4669

Also allows dynamic updates.
TNL-4668

Bump UI Toolkit version to 1.4.1

Required for the breadcrumbs work I will be doing later this week. Also should issues we are seeing with NPM this morning.

Program detail page touchups

[PERF-344] Add versioning of cached course assets to allow graceful cache invalidation

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.

Convert Dates for Time Zone

Converts the dates on the dashboard, sidebar navigation, and important course dates to user specified time zone.