fixing $locale for AJAX calls from frontend

git-svn-id: https://plugins.svn.wordpress.org/kau-boys-backend-localization/trunk@865658 b8457f37-d9ea-0310-8a92-e5e31aec5664
adding version 2.1

git-svn-id: https://plugins.svn.wordpress.org/kau-boys-backend-localization/trunk@865662 b8457f37-d9ea-0310-8a92-e5e31aec5664