fix the seo check lag

git-svn-id: https://plugins.svn.wordpress.org/squirrly-seo/trunk@1008510 b8457f37-d9ea-0310-8a92-e5e31aec5664
upgraded to version 3.3.7

git-svn-id: https://plugins.svn.wordpress.org/squirrly-seo/trunk@1008511 b8457f37-d9ea-0310-8a92-e5e31aec5664