migration
add pins controller and model
rollback
mvc setup pins
schema
pins spec
clean out controller
remove jbuilder
style form
add belongs_to and has_many associations to pin and user models
clean up
add user_id foreign key to pins and run migration
only current_user creates pin
add before_filter for authenticate and pins#new
add new column in pins to try(!) to show user associated with pins
add authorization to pins controller, and tweaked pins#index and pins#show accordingly
install paperclip gem
add attachment to pin model
generate migration and run
allow image in strong params