title: Can't add plugins using `phonegap plugin add XXX`
body: <p>I've installed phonegap version 3 using <code>npm install -g phonegap</code> and now i want to install plugins for the andriod app</p>
  
  <p>I installed node.js</p>
  
  <pre><code>C:\var\www\sexdiaries.co.uk\app&gt;node -v 
  v0.10.17
  </code></pre>
  
  <p>Then Phonegapy </p>
  
  <pre><code>phonegap plugin add https://git-wip-us.apache.org/repos/asf/cordova-plugin-splashscreen.git
  </code></pre>
  
  <p>But this gives this error:</p>
  
  <pre><code>   [error] 'plugin' is not a node C:\Users\Hutber\AppData\Roaming\npm\node_modules\phonegap\bin\phonegap.js command. 
     See 'node C:\Users\Hutber\AppData\Roaming\npm\node_modules\phonegap\bin\phonegap.js help'
  </code></pre>