Expand adminmenu from 150px to 160px, creating more room for pending comment counts and translated text. Fixes #25918, props ocean90.


Built from https://develop.svn.wordpress.org/trunk@26817


git-svn-id: http://core.svn.wordpress.org/trunk@26704 1a063a9b-81f0-0310-95a4-ce76da25c4cd