title: Eclipse PDT plugin installation
body: <p>I'm trying to install PDT plugin in Eclipse and I get error:</p>
  
  <pre><code>Cannot complete the install because one or more required items could not be found.
    Software being installed: PHP Development Tools (PDT) 3.1.2.201212211235 (org.eclipse.php.feature.group 3.1.2.201212211235)
    Missing requirement: PDT Debug UI Plug-in 3.1.2.201212211235 (org.eclipse.php.debug.ui 3.1.2.201212211235) requires 'bundle org.eclipse.dltk.debug.ui [4.0.0,5.0.0)' but it could not be found
    Cannot satisfy dependency:
      From: PHP Development Tools (PDT) 3.1.2.201212211235 (org.eclipse.php.feature.group 3.1.2.201212211235)
      To: org.eclipse.php.debug.ui [3.1.2.201212211235]
  </code></pre>