Stop using main_url to generate absolute urls for the main site
Stop using admin_url to generate absolute url for the admin interface
Inline helper
Inline helper
Inline helper method
Replace use of route_url(:only_path => true) with route_path where we can
Remove unused helper
Fix incoming_message_url to return an absolute path. Don't use this helper with links
Use absolute urls when redirecting
Make internal links relative
Remove unused parameters from helper method
Don't need to set asset_host anymore because we are removing the proxy admin setup
Configurations ADMIN_BASE_URL and ADMIN_PUBLIC_URL are no longer used anywhere