Make border radius work in IE9.

Author: kbuck1

css/qui.mcss

@@ -162,6 +162,7 @@ input:not([type]),input[type="text"],input[type="password"] {
   cursor: default;
   -moz-border-radius: 4px;
   -webkit-border-radius: 4px;
+  border-radius: 4px;
   margin-right: -2px;
   white-space: nowrap;
   text-decoration: none;
@@ -173,13 +174,15 @@ input:not([type]),input[type="text"],input[type="password"] {
   border: 1px solid $(bg_tab_hover_border);
   -moz-border-radius: 4px;
   -webkit-border-radius: 4px;
+  border-radius: 4px;
 }
 
 .qwebirc-qui .tab-selected {
   background: $(bg_tab_selected);
   border: 1px solid $(bg_tab_selected_border);
   -moz-border-radius: 4px;
   -webkit-border-radius: 4px;
+  border-radius: 4px;
 }
 
 .qwebirc-qui div.input {
@@ -195,6 +198,7 @@ input:not([type]),input[type="text"],input[type="password"] {
   padding-left: 3px;
   -moz-border-radius: 2px;
   -webkit-border-radius: 2px;
+  border-radius: 2px;
 }
 
 .qwebirc-qui a.tab-hilight-activity {