add geocoder gem
ran migrations
added locations controller with sample code from geocoder docs
added locations/show view with sample code
added locations/index view with sample code
added locations to routes.rb, for testing
added sample geocoder lines to Location model from sample code
added geocode and reverse geocode to Location model
update location#show for testing
Merge pull request #5 from kmazanec/geocoder_spike

Geocoder spike