Updated compat

git-svn-id: https://plugins.svn.wordpress.org/bbpress-recaptcha/trunk@1046603 b8457f37-d9ea-0310-8a92-e5e31aec5664
Corrected readme syntax

git-svn-id: https://plugins.svn.wordpress.org/bbpress-recaptcha/trunk@1046616 b8457f37-d9ea-0310-8a92-e5e31aec5664