don't need to use Django static serving, as cherrypiserver sits in front.  This wasn't working for the start.sh script...
Merge branch 'api_url' of github.com:bcipolli/ka-lite into api_url
parceling out urls.py into main and central apps, making sure that 404 and 500 handlers work\!
Merge remote-tracking branch 'origin/api_url' into install_wizard

Conflicts:
	kalite/settings.py
include CENTRAL_SERVER settings into local_settings file for install, don't refresh page when selecting num_certificates, better error reporting
Merge remote-tracking branch 'origin/api_url' into install_wizard

Conflicts:
	kalite/central/views.py
	kalite/urls.py