changed photo_size_validator to 10mg
added html page for two kitchen creation process
added private methods to photos_controller for authorization purpose
moved css of error field and error explaination to main.scss
added jquery to disable photo upload button when file field is empty
jquery now enable submit on file upload
added styling for photo_upload modal
photo_upload now show modal while user is waiting
added back photos#index; I deleted it previously by mistake
Merge branch 'kitchen-create-page'