JActionList do not create Model by itself

The ActionModel is useful to other classes.
Initialize it from somewhere else so that
it is not bond to JActionList directly.

src/org/zeroxlab/aster/JActionList.java

@@ -80,8 +80,8 @@ public String getUIClassID() {
 
     protected ActionListModel model;
 
-    public JActionList() {
-        this.model = new DefaultActionListModel();
+    public JActionList(ActionListModel model) {
+        this.model = model;
         this.updateUI();
     }