Add favorite button to users index page
Make the route a post
Give the ability to favorite usrs
Add link to unfavorite users
Drop user favorite user table
Remove user favorite user model
Create user interactions table
Remove user interaction spec
Annotate user interaction
Fix controller for favoriting
Add unfavorite method
Add unfavoriting as an ability
Favorite and unfavorite js functions
Add specific styleheet for company section of the site
Add additional styles for the overall site
Use UserInteraction to tell if a user has favorited