Go back to using mx.resources.ResourceBundle, as it's the standard thing

and turned out to not be the class that was sucking in vast quantities of
flex code. Alas.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@4596 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/as/com/threerings/util/MessageManager.as

@@ -25,6 +25,8 @@ package com.threerings.util {
 //
 //import mx.resources.Locale;
 
+import mx.resources.ResourceBundle;
+
 /**
  * The message manager provides a thin wrapper around Java's built-in
  * localization support, supporting a policy of dividing up localization