Added geocoder gem
Added JS for Google maps integration
Added latitude and longitude to restaurant table
Changed city_state to city and state
Added geocoder related stuff so we can get lat and long values upon saving to the DB
Added Google Maps API link to header
Added maps functionality

If there is an address in the DB, shows that address with marker on that address. If not, it just shows the whole US.
Added separate city and state fields to reflect change in DB
Moved maps js code from application.js to maps.js
Merge pull request #47 from Nayshins/maps

Maps