Verify the new sites path in site-check middleware
Send user straight to setup-site view when accessing non-existing site
Remove SiteTemplate table, add template name field to Site
Access template field, not SiteTemplate rel
Remove SiteTemplate model
Add template name choices
Add type field to sites
Add forening foreign key to sites
Remove the one-to-one site/forening relationship
Add get_main_site model method
Add migration dependency
Support multiple sites