IE8 fixes.

converse.css

@@ -123,7 +123,7 @@ span.spinner.hor_centered {
     background-color: white;
     overflow: auto;
     border-left: 1px solid #AAA;
-    max-width: 99px;
+    max-width: 98px;
     border-bottom-right-radius: 4px;
 }
 
@@ -731,6 +731,7 @@ div#settings {
     background-color: white;
     border-bottom-right-radius: 4px;
     border-bottom-left-radius: 4px;
+    width: 100%;
 }
 
 div#chatrooms {