fixes to language files

git-svn-id: https://plugins.svn.wordpress.org/duplicator/trunk@930426 b8457f37-d9ea-0310-8a92-e5e31aec5664
dev line update

git-svn-id: https://plugins.svn.wordpress.org/duplicator/trunk@930429 b8457f37-d9ea-0310-8a92-e5e31aec5664