It adds a picture to a cat by selecting from the computer and uloading to the server using the gem 'carrierwave'.
It shows all the pictures in the cats page. Each picture is linked to the cat info.
All the files has been modified.

 On branch master
	new file:   app/uploaders/cat_picture_uploader.rb
	new file:   db/migrate/20141008135536_add_owner_to_cat.rb
	new file:   db/migrate/20141008153210_add_picture_to_cat.rb