Memoized relevant models to save things that would not change
Added new relic gem and cached order total method
Merge branch 'master' into optimization
Moved newrelic.yml and added restaurant_id validation to order and built location has restaurants method
Created active restaurants method for location
Added caching to restaurants index and items index
Added ability to update location of restaurant as restaurant admin, and cached all admin panel views
Sorted cities by name in restaurant admin panel
Removed unused update method in dashboard controller
Cleanup of files and one cache on locations index
Added indices to join tables and common relationships, and added slugs to categories for navigating by category