Remove black border around icons in the dashbaord editor (class and icon popup menus)

git-svn-id: http://svn.code.sf.net/p/itop/code/trunk@2541 a333f486-631f-4898-b8df-5754b55c2be0

css/light-grey.css

@@ -1406,4 +1406,7 @@ a.summary,  a.summary:hover {
 	border: 1px solid #933;
 	background: url(../images/error.png) 1em 1em no-repeat #fcc;
 	padding-left: 3em;
+}
+.fg-menu a img {
+        border: 0;
 }