title: How to reload a chrome extension automatically?
body: <p>I am developing a chrome extension, and I found that there are repeating useless manual reloading works.</p>
  
  <p>When you save a file, you have to refresh the <code>chrome:\\extensions</code> page to let browser to reload the extension. And then you have to reload the test page to see if the changes to files take effect. </p>
  
  <p>I am newbie to Chrome extension development. And are there any ways to reduce the repeating works? I am also curious that what is the best practice of chrome extension development workflow.</p>
  
  <p>Poor English, feel free to correct.</p>