version 1.4 - form themes, better auto guessing and more awesome stuff.

git-svn-id: https://plugins.svn.wordpress.org/mailchimp-for-wp/trunk@794589 b8457f37-d9ea-0310-8a92-e5e31aec5664
readfile improvement in css.php 

git-svn-id: https://plugins.svn.wordpress.org/mailchimp-for-wp/trunk@794590 b8457f37-d9ea-0310-8a92-e5e31aec5664