title: Pydrive error: No downloadLink/exportLinks for mimetype found in metadata
body: <p>I am trying to download a simple text file from google drive automatically with the pydrive module for python. I keep getting the following error:</p>
  
  <blockquote>
    <p>Traceback (most recent call last):
      File "C:\GIS\AVGOPS\Scripts\GoogleDrive_Test.py", line 20, in 
        item.GetContentFile(r'C:\Users\pfilyer\Desktop\googedrive\' + item['title'])
      File "C:\Python27\ArcGIS10.4\lib\site-packages\pydrive\files.py", line 210, in GetContentFile
        self.FetchContent(mimetype, remove_bom)
      File "C:\Python27\ArcGIS10.4\lib\site-packages\pydrive\files.py", line 43, in _decorated
        return decoratee(self, *args, **kwargs)
      File "C:\Python27\ArcGIS10.4\lib\site-packages\pydrive\files.py", line 265, in FetchContent
        'No downloadLink/exportLinks for mimetype found in metadata')
    FileNotDownloadableError: No downloadLink/exportLinks for mimetype found in metadata</p>
  </blockquote>
  
  <p>Any suggestions? </p>
  
  <pre><code>import pydrive
  from pydrive.drive import GoogleDrive
  
  from pydrive.auth import GoogleAuth
  
  gauth = GoogleAuth()
  gauth.LoadCredentialsFile(r"C:\Users\XXXXX\.credentials\drive-python-quickstart.json")
  drive = GoogleDrive(gauth)
  
  print "Auth Success"
  
  folder_id = '0BxbuUXtrs7adSFFYMG0zS3VZNFE'
  lister = drive.ListFile({'q': "'%s' in parents" % folder_id}).GetList()
  for item in lister:
      print item['title']
      item.GetContentFile(r'C:\Users\XXXXX\Desktop\googedrive\\' +    item['title'])
  </code></pre>