Adding the -n option to the Sphinx build invocation

This should not be needed, we specify ATOMIC_REQUESTS on each DB

Adding the -n option to the Sphinx build invocation so that WARNINGs will be treated as ERRORs. This will cause builds to fail if Sphinx cannot import modules for its autoclass directives. Currently, they fail silently and leave gaps in the published HTML where docstring content should have been.

Release ⇒ master

Added Flaky decorator to Chrome flaky tests

ECOM-3415 - Dashboard should show all XSeries association messages 

Release Candidate rc/2016-03-01

Registration: don't require terms of service if checkbox is hidden

Fixes test failures in e4613749

Fix list index out of range in Textbook's chapters.

Quiet the safe sessions logging for expected use cases

Remove unused profile name.

Revert "Merge pull request #11523 from edx/perf/speed-up-slow-user-role-ops

This reverts commit acf6c1d6, reversing
changes made to c59db6e5.

The profile name requires escaping when displayed. Proactively removing since it is not being used.

Allowed staff/admin of course to view ccx coach dashboard

Fix behaviour on empty response to problems

Add app_label to models to prevent Django1.9 warnings.

WIP: Lots of Python unittest speedups

Fixed progress exception for credit courses

Speed up comment client tests

Also accelerates forums UnicodeTestCases

Remove multiple course export format versions.

There is one DB where we do not want it specified since transactions
on the CSMHE table when we aren't atomic across databases isn't a win.

Don't hardcode student_module_history

Use SharedModuleStoreTestCase in the courseware navigation tests for speedup.

Whittling away at XML modulestore code

Add SharedModuleTestCase to git_import tests

aws_migrate may be used on boxes where that DB does not yet exist.

Check both url and title for the presence of code

Monkey patch django.db.models.options for faster cache expiry