title: Ionic v1 use webpack instead of gulp
body: <p>I have 2 questions:</p>
  
  <ol>
  <li><p>Can I use webpack instead of gulp while running "ionic serve"</p></li>
  <li><p>Can I use webpack instead of gulp while running "ionic build android" ?</p></li>
  </ol>
  
  <p>Currently the configurations are under:
  ionic.project file with the properties: "gulpStartupTasks" and "watchPatterns"</p>