images_processing.js:
 - include socket_io_clients.js
 - add uri.js to the JavaScript Assets
 - remove unnecessary require for join.js
bootstrap_photo_album.html: use to_uri(), fix options name 'album' -> 'album_name'
bootstrap_carousel.js: fix carousel default controls
bootstrap_photo_album.js: order input sets before bootstrap_photo_matrix() and bootstrap_carousel()