Version 1.31.4 updates

git-svn-id: https://plugins.svn.wordpress.org/pie-register/trunk@843707 b8457f37-d9ea-0310-8a92-e5e31aec5664
Marking version 1.31.4 as stable

git-svn-id: https://plugins.svn.wordpress.org/pie-register/trunk@843709 b8457f37-d9ea-0310-8a92-e5e31aec5664