Added a translation for the Ukrainian language

git-svn-id: https://plugins.svn.wordpress.org/smoothgallery/trunk@971888 b8457f37-d9ea-0310-8a92-e5e31aec5664
Added a translation for the Ukrainian language

git-svn-id: https://plugins.svn.wordpress.org/smoothgallery/trunk@971891 b8457f37-d9ea-0310-8a92-e5e31aec5664