Use linked hash map so that iteration is in-order.

git-svn-id: http://svn.igniterealtime.org/svn/repos/wildfire/trunk@5852 b35dd754-fafc-0310-a699-88a17e54d16e

src/java/org/jivesoftware/wildfire/XMPPServer.java

@@ -99,7 +99,7 @@ public class XMPPServer {
     /**
      * All modules loaded by this server
      */
-    private Map<Class, Module> modules = new HashMap<Class, Module>();
+    private Map<Class, Module> modules = new LinkedHashMap<Class, Module>();
 
     /**
      * Listeners that will be notified when the server has started or is about to be stopped.