modified schema to change relationships between users and locations
changed config to autoload module paths
added null user model
moved geolocator gem calls to geography module
added cost index model and associated files
changed user-location association
added route for cost index
removed unnecessary functions from app controller
added tests for null user model
added location factory
modified return format for module
modified creation of locations; linked creation of cost index to locations
added ability to create locations from ip or search input
linked scaled salary displays
restructured cost index and location
updated layout behavior
added caching to null user method
updated modules
updated integration tests
deleted cost index controller spec