Update contractor files to use has_many :through association with contractor_regions
Add categories class and joins for resource and contractor
Fix Resource class to use Category class
Fix Contractor class to use Category class
Fix code to display number of resources or contractors on map
Set category joins to be destroyed if user is
Add Fuel class
Fix Resource to be able to create and update fuels
Fix js errors
Finish implementing fuels funcionality
Refactor homepage to use Quals collection
Add map to index to search resources
Add links to search pages in header.

Map links for returning to search the same controller, contractor and resource links
to take you to the other controller.
Fix checkbox on resource map to send 'AVAILABLE' or empty string
Precompile assets for production
Update seed file so Region ids will coinside with number
Fix typo in seed file
Remove map from home pgae and add links for contractor and resource
Add message to index pages to alert user if search returned no objects
Add Job class and finish CRUD