Fixed issue with actions on manage groups dialog I introduced recently

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@6922 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/web/action/ActionEvaluator.java

@@ -47,4 +47,14 @@ public interface ActionEvaluator
     * @return result of whether the action can proceed.
     */
    public boolean evaluate(Node node);
+   
+   /**
+    * The evaluator should decide if the action precondition is valid based on the appropriate
+    * logic and the state etc. of the given object and return the result.
+    * 
+    * @param obj     The object the action is for
+    * 
+    * @return result of whether the action can proceed.
+    */
+   public boolean evaluate(Object obj);
 }