Enable viewing without being on any zone.
Merge branch 'refactor_control_panel_context' into open_access_control_panel
Merge branch 'release-0.11' of github.com:learningequality/ka-lite into open_access_control_panel

Conflicts:
	kalite/control_panel/views.py
Merge pull request #996 from bcipolli/open_access_control_panel

Open access control panel