includes serbian translations

git-svn-id: https://plugins.svn.wordpress.org/search-index-page-content/trunk@964654 b8457f37-d9ea-0310-8a92-e5e31aec5664
updated version information

git-svn-id: https://plugins.svn.wordpress.org/search-index-page-content/trunk@964655 b8457f37-d9ea-0310-8a92-e5e31aec5664