update

git-svn-id: https://plugins.svn.wordpress.org/tt-guest-post-submit/trunk@945853 b8457f37-d9ea-0310-8a92-e5e31aec5664
readme.txt

git-svn-id: https://plugins.svn.wordpress.org/tt-guest-post-submit/trunk@945856 b8457f37-d9ea-0310-8a92-e5e31aec5664