Merge pull request #24 from BryanWahlstrom/master

Round 7 layout changes
add link to site details on profile page, merged from BRYAN!
add unsubscribe_from_gauge method
add unsubscribe_from_gauge to routes.
add subscribed? method to user model
modify river show view to toggle subscribe and unsubscribe depending on status
modify river index view to toggle subscribe and unsubscribe depending on status
bug fix. subscribing and unsubscribing now work as expected.
Merge pull request #25 from studiostark/master

Can now subscribe and unsubscribe. Buttons display correctly depending on subscription status.
titleize state names on site pages
fix formatting of site names to properly capitalize state abbreviations, use regex to account for no space after commas
fix subcription buttons to redirect back to same page after clicking