replaced/added language files

git-svn-id: https://plugins.svn.wordpress.org/fws-ajax-contact-form/trunk@1011203 b8457f37-d9ea-0310-8a92-e5e31aec5664
new and modified files for version 1.04

git-svn-id: https://plugins.svn.wordpress.org/fws-ajax-contact-form/trunk@1011205 b8457f37-d9ea-0310-8a92-e5e31aec5664