showing proper error when user tries to register with an email already registered
don't hide activation error from user
simple uninstalling script added
comments incorporated
Merge branch 'master' of github.com:bcipolli/ka-lite
Merge branch 'master' of github.com:bcipolli/ka-lite
removing remote URLs from css we include on local server
Merge pull request #58 from bcipolli/regerr_actual

Fail nicely in user registration / login on central server
Merge pull request #74 from bcipolli/local_css_urls

Use local URLs for resources in khan-site.css
Merge remote-tracking branch 'origin' into api_url
missed adding 'load staticfiles' to one file