filter inactive user partitions in user partition transformer.

Fix `bulk_change_enrollment` command to emit event

ECOM-4775

Revert "Change topic name truncation."

This reverts commit d75e6335.

Release Candidate rc/2016-06-28

https://openedx.atlassian.net/browse/TNL-4865
Without this change, we get 500 errors when the server tries to
deserialize cached data using a previous data structure.

TNL-4853

Grading followup

Merge patch-2016-06-22 release to master

Upgrade edx-oauth2-provider to v1.1.3

Convert to tag syntax for version

1. update query counts with more accuracy
2. don't use defaultdict in block_structure

Grading uses Block Transformers

AC-484 changing aria- to data-, a to button

Patch Release 2016-06-22

Fixed test default sort preference failing on chrome