Add rounded corners for avatars by default.

css/index.css

@@ -1681,6 +1681,11 @@ p#whoisviewing{
 	clear: right;
 }
 /* poster details and list of items */
+.avatar{
+	border-radius: 6px;
+	-moz-border-radius: 6x;
+	-webkit-border-radius: 6px;
+}
 .poster h4, .poster ul{
 	padding: 0;
 	margin: 0 1em 0 1.5em;