Hotfix 2016-09-29b release to master

Drop noisy grades logging to debug level

Update translations (autogenerated message)

Install pa11ycrawler v1.5.4 from PyPi

Update grade when CAPA problem state is reset

These need to be dropped down to avoid splunk, as they are currently
flooding our infrastructure.

Fixed keyboard focus remains within modal simulated dialogs.

Merging Django 1.8.15 upgrade hotfix to master.

Fixes DOC-3360 to make help context-sensitive

WL-612 Report buttons are not displayed for White Label courses

Upgrade Django to 1.8.15

ECOM-4188
ECOM-5303

Create test to exercise grading multiple block types

TNL-5686

ECOM-5820 Rename completed order event

set neo4j configuration at the command line

mobile api filter enrollments by org

Christina/merge release

removed git commit from codecov call

Prevent url.min.js from being loaded outside a bundle

Release Candidate rc/2016-09-27

Revert "mobile api user course enrollments allow filter by org"

mobile api user course enrollments allow filter by org

Fix Problem grades that have weight values

allow html inside label and descriptions

Don't show error in studio when fetching YouTube metadata fails.