Add image model and CarrierWave gem to allow irealisations uploads
modified:   Gemfile
new file:   app/controllers/images_controller.rb
new file:   app/models/image.rb
new file:   app/uploaders/image_uploader.rb
modified:   config/routes.rb

Create table images for that matter
new file:   db/migrate/20130731201721_images.rb
new file:   db/schema.rb