Properly logging exceptions so we have the complete stacktrace.

ECOM-2792

Fix underscore extraction error

Update `cert_info` docstring with correct return type.

Disabled auto enroll in ccx coach's enrollment tab

Fix `withData` and `withConfiguration` helpers.

Where possible, use ugettext_noop instead of lambdas assigned to the underscore

If NO_PREREQ_INSTALL is set, print a message to explain why

Replaces instances of an old hack with the more clear ugettext_noop.

Use 0.3.2 of edx-lint, with pylint-django and C extensions read

ngettext and its parameters should not be separated into multiple lines.

Adam/disable check button on save click

Fix formatting.

Improve documentation for bok-choy.

Includes info about the serversonly/testsonly pattern, as well
as multiprocessing.

SEC-27: Escape json for Studio advanced settings

Remove chat feature

- Resolve SEC-27 by escaping course name in advanced settings
- Add escape_json_dumps to simplify escaping json in Mako templates

SEC-27: XSS/JS Error in Advanced Settings with invalid course name

SOL-1315: Add Cert Exception UI on Instructor Dash

Fix for flaky asset test SOL-1160

Fix flaky video test

Multi-process bok-choy tests

Fixed an incorrect revert

This includes:
* Ability to specify number of processes to run bok-choy tests in
* A forked nose commit to get the multiprocess plugin's logging to work
* A different plugin (xunitmp) must be used for pulling together xunit results

This works by:
* Starting the various servers that are needed for the acceptance test environment
* Running the tests themselves in multiprocess mode

Bug fix: Added test cases and updated course info view with exception handling

Changed command description texts to be sentences

TNL-3643

Fix an incorrect string format

This was originally contributed upstream by Stanford, circa 2013.

We neither use nor support this feature in its current implementation,
and in fact, we may never have used this production. Until recently, we
had additional chat/Jabber code [1] (in the form of a Jabber djangoapp in
LMS); context there suggests this feature may have never been more than
a prototype. The original author is no longer on the team, so I can't directly
confirm this on our end.

Do you use this feature?

Stanford had already abandoned this Jabber-backed chat implementation,
in favor of an IRC backend, by the time I joined the team in early 2014.

[1] https://github.com/Stanford-Online/edx-platform/commit/dbe52a6b133ab6ff637dea5324f7322da2909070