Fixing issue for french language

Upgrade django-babel-underscore to 0.3.0

Adds a comment to reduce confusion over remaining role name differences

Upgrade django-cors-headers to 1.1.0

Peter fogg/fix tnl 3101 quality

Use latest edx-lint. Adds getattr/setattr string literal checking.

Fix Forum Update Issue #TNL-3101

Cdodge/dont return none for non credit course

OSPR-535 Partial Credit

In-Course Reverification Access Control

Update credit services to gracefully handle operations on a course which is actually not credit enabled

There are 80 of these new violations in the tree, so up the lint
threshold also.

* Automatically create user partitions on course publish for each ICRV checkpoint.
* Disable partitions for ICRV checkpoints that have been deleted.
* Skip partitions that have been disabled when checking access.
* Add verification access control UI to visibility settings.
* Add verification access control UI to sequential and vertical settings.
* Add partition scheme for verification partition groups.
* Cache information used by verification partition scheme and invalidate the cache on update.
* Add location parameter to UserPartition so the partition scheme can find the associated checkpoint.
* Refactor GroupConfiguration to allow multiple user partitions.
* Add special messaging to ICRV for students in the honor track.

Authors: Zubair Arbi, Awais Qureshi, Aamir Khan, Will Daly

Squashed commit of the following:

commit 0f7c2af5f7b8caed575dd253a45299293b2729d7
Author: Colin-Fredericks <colin.fredericks@gmail.com>
Date:   Tue Jun 30 12:04:43 2015 -0400

    Forgot icon

commit b48970392741130f774709c54eb6e5ab0089812c
Author: Colin-Fredericks <colin.fredericks@gmail.com>
Date:   Tue Jun 30 11:49:57 2015 -0400

    OSPR-535 Partial Credit

    Squashed commit of the following:

    commit 6dd34f58f994e32d0d54bf1d67bffd04e0f8ef08
    Author: Colin-Fredericks <cof945@dhcp-140-247-184-176.fas.harvard.edu>
    Date:   Tue Jun 30 11:44:01 2015 -0400

        Fixing accidental overwrite.

    commit 1ff8fc4b0e83b90356e8e8dce1022f49bfd162cf
    Author: Colin-Fredericks <cof945@dhcp-140-247-184-176.fas.harvard.edu>
    Date:   Tue Jun 30 11:18:36 2015 -0400

        OSPR-535 Partial Credit

        Revised after first pull discussion.

Fixing scss typos

Fixing check/x display problem

Empty set is not []

Shuffling empty answer code to grade properly.

I don't think I ever wrote this in the first place...

Adding tests for MC and Checkbox

including proper partial-credit marking and scoring

Numerical and OptionResponse tests

Also a few improvements to NumericalResponse problem type and
exception-raising.

CustomResponse tests and more numerical tests

Increasing coverage and fixing typos

Exception added for pylint false positive

Hopefully fixing coverage issue

Retabulating line continuation

Bok Choy test for partial credit

Copypasta fix

Adding tooltip for partial credit

Improving and expanding comments

Minor fixes

Hash Update: Poll XBlock (fixes TNL-3065)

ziafazal/SOL-493: Fetch scores via ScoresClient

Merge release into master

fixing issue with student re-verification.

ECOM-1932

Allow user partition version >= current version.

ECOM-2106

Hiding find courses button from dashboard of edge.edx.org
FYI @wedaly 

ECOM-1996

Fixing flaky TeamPageTest bokchoy tests

Release 2015 08 18 conflict

If code is deployed that updates the user partition version,
then the code is rolled back, we may see user partition versions
greater than the currently deployed version.

The previous behavior was to raise a TypeError when this occurred;
the new behavior assumes that the newer version is backwards
compatible and tries to load the partition.

The flaky test problems we've been seeing here are coming from not
waiting long enough after performing actions. By forcing
is_browser_on_page checks to wait until the page is fully loaded
instead of just looking for the presence of a single element, we
ensure that there will not be issues interacting with non-loaded
elements.

TNL-3069

Add sorting by last_activity_at.

Add USD labels to prices on track selection pages

Teams page content padding

Upgrade Django to 1.4.22

Updating documentation for team_membership endpoint