add model Size, add create action to photos controller, add create post route to routes.rb
modify model Photo more functional, add skip_before_filter in photos_controller to avoid csrf token, instead http basic authentication. and add hidden input field to application.html.haml.
add update_latest_photo.js.erb and make function.
Merge branch 'master' of https://github.com/SungHong-Cho/kidspark
add flickr helper functions in javascript file - update_latest_photos.js.erb.
Merge branch 'master' of https://github.com/SungHong-Cho/kidspark

Conflicts:
	app/controllers/photos_controller.rb
	app/views/layouts/application.html.haml