added index action to matches controller, added dependent destroy to match - user_matches in match model, updated conversations partial to display current user's match index, nested matches routes inside users routes
initial changes to cards view
added paperclip gem and the ability for users to upload a profile picture from the new user signup form or from the user edit view
added user profile pics directory to the .gitignore file, added validations for user profile pic, uncommented validations for the like model
changes to the cards layout, a positioning bug on the like button
Merge branch 'master' into nick

Add user image uploads