title: Eclipse IDE - Perspective is cached and changes has no any effect
body: <p>I have created new Eclipse IDE (plugin project, Eclipse Kepler, rel. 1) with default template of mail client.</p>
  
  <p>After the first run of the app, the Perspective is stored and remembered (somewhere?) and any <strong>changes to Perspective.java has no any effect</strong>! Even if I delete the content of <em>createInitialLayout(IPageLayout layout)</em> from the Perspective.java, everything is restored again.</p>
  
  <p>BTW: adding this code to ApplicationWorkbenchAdvisor.java didnt help:</p>
  
  <pre><code>@Override
  public void initialize(IWorkbenchConfigurer configurer) {
      super.initialize(configurer);
      configurer.setSaveAndRestore(false);
  }
  </code></pre>
  
  <p>How can I force the app to not to remmeber the layout?</p>