Release 5.0.16

git-svn-id: https://plugins.svn.wordpress.org/wp-photo-album-plus/trunk@744860 b8457f37-d9ea-0310-8a92-e5e31aec5664
Release 5.0.16 Some language files

git-svn-id: https://plugins.svn.wordpress.org/wp-photo-album-plus/trunk@744861 b8457f37-d9ea-0310-8a92-e5e31aec5664