title: Download file to downloads folder ios/android using phonegap
body: <p>I am getting a JSON response from a web service that returns a file in  either binary or base64 . I want to save this file to the fileSystem. </p>
  
  <ol>
  <li>I wanted to know the ideal (default/industry standard ) location to download these files for IOS/ ANdroid on the file system.</li>
  <li>IF there is no ideal place i would want to save them in the default downloads folder for IOS/Android. I would then like to know what is the location of these folders. </li>
  </ol>
  
  <p>I also wanted to know which methods in the Phonegap FileAPi i need to use?  </p>