Add HTML classes for CSS compatibility with various themes

git-svn-id: https://plugins.svn.wordpress.org/wp-listings/trunk@925322 b8457f37-d9ea-0310-8a92-e5e31aec5664
Rename/remove translation template file

git-svn-id: https://plugins.svn.wordpress.org/wp-listings/trunk@925324 b8457f37-d9ea-0310-8a92-e5e31aec5664