title: Plugin manager not working in netbeans 7.0.1
body: <p>On upgrading from netbeans 6.9 to 7.0.1, my plugins are not visible in the plugins manager. But more importantly, I am not even able to install new plugins, or watch the avaialble plugins. No plugins are displayed in the list as suggestions. However all my proxy settings are configured correctly &amp; also netbeans is able to connect to internet &amp; download maven stuff.</p>
  
  <p>I tried to manually import the settings of 6.9 into 7.0.1 but no effect. How can I again make it work ?</p>