title: cordova update does not update www/cordova.js
body: <p>After running commands </p>
  
  <pre><code>"cordova platform update ios" 
  </code></pre>
  
  <p>and </p>
  
  <pre><code>"cordova build ios" 
  </code></pre>
  
  <p>on MacOS, the file <code>./platforms/ios/www/cordova.js</code> was updated but the file <code>www/cordova.js</code> was not. </p>
  
  <p>I expected that </p>
  
  <pre><code>"platform update" 
  </code></pre>
  
  <p>should update <code>www/cordova.js</code>, then the </p>
  
  <pre><code>"build ios" 
  </code></pre>
  
  <p>would update <code>./platforms/ios/www/cordova.js</code>.  <code>./platforms/ios/www/cordova.js</code> is the correct version.  Files <code>./platforms/ios/platform_www/cordova.js</code>, <code>./platforms/ios/CordovaLib/cordova.js</code> and <code>./platforms/ios/build/emulator/iAcquire.app/www/cordova.js</code> were also updated to the correct version.  Anyone have any idea why this is not working the way I expect?</p>