Support for WP-Portfolio

git-svn-id: https://plugins.svn.wordpress.org/shrinktheweb-refresh-all/trunk@783601 b8457f37-d9ea-0310-8a92-e5e31aec5664
Updated readme.txt

git-svn-id: https://plugins.svn.wordpress.org/shrinktheweb-refresh-all/trunk@783602 b8457f37-d9ea-0310-8a92-e5e31aec5664
Updated readme.txt with mention of WP-Portfolio

git-svn-id: https://plugins.svn.wordpress.org/shrinktheweb-refresh-all/trunk@783606 b8457f37-d9ea-0310-8a92-e5e31aec5664