Merge branch 'sharing'

3rdparty/css/chosen/chosen-sprite.png

3rdparty/css/chosen/chosen.css

apps/files_publiclink/ajax/getlink.php

apps/files_publiclink/appinfo/app.php

apps/files_publiclink/lib_public.php

apps/files_sharing/ajax/getitem.php

apps/files_sharing/ajax/setpermissions.php

apps/files_sharing/ajax/share.php

apps/files_sharing/ajax/unshare.php

apps/files_sharing/ajax/userautocomplete.php

apps/files_sharing/appinfo/app.php

apps/files_sharing/appinfo/database.xml

apps/files_sharing/appinfo/info.xml

apps/files_sharing/css/sharing.css

apps/files_sharing/js/list.js

apps/files_sharing/js/share.js

apps/files_sharing/lib_share.php

apps/files_sharing/list.php

apps/files_sharing/sharedstorage.php

apps/files_sharing/templates/list.php