- Added action evaluator to start workflow action so the guest user can not start workflows

- Handled the case in the start workflow wizard where there are no workflows to start (info message displayed)

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@3667 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/web/bean/workflow/StartWorkflowWizard.java

@@ -447,6 +447,17 @@ public class StartWorkflowWizard extends BaseWizardBean
             new String[] {workflowName});
    }
    
+   /**
+    * Determines whether there are any workflows to start
+    * @return
+    */
+   public boolean getHasStartableWorkflows()
+   {
+      // get the list of startable workflow, this will intialise the list if necessary
+      List<SelectItem> workflows = getStartableWorkflows();
+      return (workflows.size() > 0);
+   }
+   
    /**
     * Returns a list of workflows that can be started.
     *