title: Composer list packages with installed version and latest version
body: <p>As in the title, is there any command that can list installed packages and the latest version of those packages together?</p>
  
  <hr>
  
  <p>edit:</p>
  
  <pre><code>php composer.phar show
  </code></pre>
  
  <p>this show all available packages and also installed packages with installed version only</p>
  
  <pre><code>php composer.phar show [package]
  </code></pre>
  
  <p>this can get both installed version and latest version, but it is inconvenience if many packages are installed </p>