adds backbone folders
renames JavaScript namespace into MP
adds not-nested pin route
cleanup
adds Pins backbone views
moves Backbone initialisation to pins#index page
pin#index route not nested after all
backbones initializes creating a PinsRouter with an index action
switched to using Thin server instead of Rails
index action now fetches pins and creates/render pins_index view
first iteration of pins index view/template - renders everything as json
cleanup
PinsIndexView now builds and append a PinCardView for each pin in the collection / adds PinCardView CSS