Updated readme

git-svn-id: https://plugins.svn.wordpress.org/browser-compatibility/trunk@992416 b8457f37-d9ea-0310-8a92-e5e31aec5664
update 2.0 trunkTested up to: 3.9.2 
Stable tag: 2.0


git-svn-id: https://plugins.svn.wordpress.org/browser-compatibility/trunk@992419 b8457f37-d9ea-0310-8a92-e5e31aec5664