Allow qtags on edit-comment screen. New rc

git-svn-id: https://plugins.svn.wordpress.org/addquicktag/trunk@933286 b8457f37-d9ea-0310-8a92-e5e31aec5664
Enhance readme

git-svn-id: https://plugins.svn.wordpress.org/addquicktag/trunk@933288 b8457f37-d9ea-0310-8a92-e5e31aec5664