title: Update cordova plugins in one command
body: <p>I am wondering is there an easier way to update cordova plugin?</p>
  
  <p>I googled, found a hook (@ year 2013), but this is not 100% what I want.</p>
  
  <p>I know I can do this by two steps: rm, then add
  but I am looking for a better (official) way to help me which plugins have newer version? and I can update ALL of them in one command. (just like: npm update)</p>
  
  <p>for example:</p>
  
  <pre><code>$ cordova plugin list
  /* list all installed plugins, their dependencies, and newer versions */
  
  $ cordova plugin update
  /* update all of them for me */
  </code></pre>
  
  <p>if there is no official way, is there some other helper? yo?</p>