Provide access to the send button.

git-svn-id: svn+ssh://src.earth.threerings.net/nenya/trunk@621 ed5b42cb-e716-0410-a449-f6a68f950b19

src/as/com/threerings/flex/ChatControl.as

@@ -80,6 +80,14 @@ public class ChatControl extends HBox
         return _txt;
     }
 
+    /**
+     * Provides access to the send button.
+     */
+    public function get sendButton () :CommandButton
+    {
+        return _but;
+    }
+
     /**
      * Request focus to this chat control.
      */