Added new icons and compatible with WordPress 4.0

git-svn-id: https://plugins.svn.wordpress.org/as-heard-on/trunk@973967 b8457f37-d9ea-0310-8a92-e5e31aec5664
Added plugin icons

git-svn-id: https://plugins.svn.wordpress.org/as-heard-on/trunk@973975 b8457f37-d9ea-0310-8a92-e5e31aec5664