Added info about Bulgarian language.

git-svn-id: https://plugins.svn.wordpress.org/cp-contact-form-with-paypal/trunk@1046298 b8457f37-d9ea-0310-8a92-e5e31aec5664
Added plugin language files for Catalan language.

git-svn-id: https://plugins.svn.wordpress.org/cp-contact-form-with-paypal/trunk@1046313 b8457f37-d9ea-0310-8a92-e5e31aec5664
Added info about Catalan language.

git-svn-id: https://plugins.svn.wordpress.org/cp-contact-form-with-paypal/trunk@1046331 b8457f37-d9ea-0310-8a92-e5e31aec5664