gallery sharing, experimental version

apps/gallery/ajax/galleryOp.php

apps/gallery/ajax/sharing.php

apps/gallery/appinfo/app.php

apps/gallery/appinfo/database.xml

apps/gallery/css/sharing.css

apps/gallery/css/styles.css

apps/gallery/img/breadcrumb.png

apps/gallery/index.php

apps/gallery/js/album_cover.js

apps/gallery/js/albums.js

apps/gallery/js/sharing.js

apps/gallery/lib/album.php

apps/gallery/lib/photo.php

apps/gallery/lib/sharing.php

apps/gallery/sharing.php

apps/gallery/templates/index.php

core/js/oc-dialogs.js