Merge pull request #1057 from bcipolli/fix_test_po

get update_po to work for multiline translations
bug in group-user-management, tweaking some code styling.
Merge branch 'release-0.11' of github.com:learningequality/ka-lite into release-0.11
Merge branch 'release-0.11' of github.com:learningequality/ka-lite into unwrapped_strings_1

Conflicts:
	kalite/templates/current_users.html