Ahaha. If it's not broken, fix it. If it is, fix it too.
Bug fix for #2334.
On server start, clear is_running on any old chronograph jobs.
Required import for clearing of is_running on Jobs.
Merge pull request #2337 from cpauya/feature/2334-Cannot-sync-server-on-Mac-to-central-server

Bug fix for #2334.
Merge pull request #2340 from learningequality/release-0.12.0

Release 0.12.0
Refactor Test object to make .all method available.
Fixes reference to testscache in api_resources.
add a get_test_object method for TestLog
use the total number of questions for showing the average for the exam coach reports
Tweak to avoid error when setting exam mode.
Styling tweaks to mitigate impact of bootstrap on top navbar.
Merge branch 'nalanda-rct2' into nalanda-rct3

Conflicts:
	kalite/student_testing/api_resources.py
	kalite/student_testing/models.py
	kalite/student_testing/utils.py