Set ALLOWED_HOSTS setting

This needs to be set in order for django to serve
requests. Being permissive is not necessarily a
problem since this is an internal application; however,
this should be set more strictly if this app is deployed
to the public.
Update deployment script for nginx and gunicorn
Ignore static files
Change host settings to parameters
Remove manual install of google transitfeed

This has been added to python requirements to
avoid installing on every provision and since
we have to use some of its functions anyhow.