apply 'moviecounts' changes to the homepage.
Merge pull request #458 from bcipolli/api_error_cleaning

Two simple "API error" changes
Merge branch 'develop' of github.com:learningequality/ka-lite into develop
Merge branch 'release-0.10' of github.com:learningequality/ka-lite into develop
Added management command to display Nginx frontend proxy config.
Added comment to nginxconfig about changing port.
check if username given is in User tables
separate errors for username conflicts in FacilityUser and User
fix form validation errors
fix expected error message
fix return data of clean_username
To decorate a decorator, decorate the inner function.
css tweaks for more pleasant homepage
fixing __file__ reference in cronserver.py
Merge pull request #479 from jamalex/fix_central_server_complete_and_utter_brokenness

To decorate a decorator, decorate the inner function.
Add font mimetype to avoid warnings on exercise pages.
Merge branch 'release-0.10' of github.com:learningequality/ka-lite into moviecounts_homepage

Conflicts:
	kalite/main/views.py
Merge branch 'release-0.10' into develop
cleanup form tests
Merge pull request #469 from aronasorman/375

[WIP] check if username given is in User tables