title: Is there a way to connect thunderbird/lightning to the redmine's calendar?
body: <p>I just started my adventure with the Redmine 3.0, the project manager. </p>
  
  <p>I can't Google out if there is an option to export its calendar to e.g. thunderbird-ligthning. There are some <a href="http://www.redmine.org/projects/redmine/wiki/PluginICalendarExport" rel="nofollow">plugins</a>, but they are not compatible with current Redmine 3.0. I couldn't find out anything relevant in the <a href="http://www.redmine.org/projects/redmine/wiki/Changelog" rel="nofollow">changelog</a>, too.</p>
  
  <p>Can anyone tell me from their own experience, if (and how) this feature is available?</p>