Update all future imports for Python 2

plexpy/webstart.py

@@ -17,14 +17,11 @@
 
 from __future__ import absolute_import
 from __future__ import unicode_literals
-from future import standard_library
-standard_library.install_aliases()
-from builtins import str
-from builtins import object
+from future.builtins import object
 
 import os
 import sys
-from urllib.parse import urlencode
+from future.moves.urllib.parse import urlencode
 
 import cherrypy