banner change

git-svn-id: https://plugins.svn.wordpress.org/gzip-ninja-speed-compression/trunk@1021818 b8457f37-d9ea-0310-8a92-e5e31aec5664
readme update

git-svn-id: https://plugins.svn.wordpress.org/gzip-ninja-speed-compression/trunk@1021819 b8457f37-d9ea-0310-8a92-e5e31aec5664