prompt user to create an admin account if none exists
More efficiently prompt user to create an admin account if none exists
Increment tests to accomodate for new query in login workflow.
Merge branch 'release-0.12.0' of github.com:learningequality/ka-lite into 2047

Conflicts:
	kalite/distributed/tests/browser_tests/query_tests.py
Merge pull request #2097 from dylanjbarth/2047

Prompt user to create an admin account if none exists