Prevent students from changing their group
Add `mimeparse.py` from `nalanda-rct3` because `tastypie` needs it.
Add browser tests for group selection on facility user form
Merge pull request #2418 from dylanjbarth/2414-student-groups

Prevent students from changing their group
upgrade selenium from 2.39.0 to 2.43.0
add `ghostdriver.log`
Merge pull request #2429 from mrpau/feature/upgrade-selenium

Upgrade selenium from 2.39.0 to 2.43.0
Merge branch 'release-0.12.0' into hotfix/add-mimeparse-py
Merge pull request #2420 from mrpau/hotfix/add-mimeparse-py

Add `mimeparse.py` from `nalanda-rct3` because `tastypie` needs it.
Merge pull request #2432 from learningequality/release-0.12.0

Release 0.12.0 to nalanda-rct2