  
  import logging
  import os
  import warnings
  import zipfile
  from socket import timeout as socket_timeout, error as socket_error
  
  from hashlib import sha1
 
</s> remove import os
 </s> add 
import urllib
  
  import logging
  import os
import urllib
  import warnings
  import zipfile
  from socket import timeout as socket_timeout, error as socket_error
  
  from hashlib import sha1
keep keep add keep keep keep keep keep
 Remove Dlib Aligner

Remove Dlib Aligner
Add CV2-DNN Aligner replacement for dlib
Remove aligner models from repo
Add download function to pull models from remote location
Minor FAN fixups 
lib/utils.py