3.9.7.3

git-svn-id: https://plugins.svn.wordpress.org/spam-hammer/trunk@1037368 b8457f37-d9ea-0310-8a92-e5e31aec5664
Readme redaction for 3.9.7.3.

git-svn-id: https://plugins.svn.wordpress.org/spam-hammer/trunk@1037370 b8457f37-d9ea-0310-8a92-e5e31aec5664