Update 'requests' lib to v2.0.

third_party/requests/structures.py

 # -*- coding: utf-8 -*-
 
 """
 requests.structures
 ~~~~~~~~~~~~~~~~~~~
 
 Data structures that power Requests.
 
 """
 
@@ skipping 85 matching lines @@
     def __eq__(self, other):
         if isinstance(other, collections.Mapping):
             other = CaseInsensitiveDict(other)
         else:
             return NotImplemented
         # Compare insensitively
         return dict(self.lower_items()) == dict(other.lower_items())
 
     # Copy is required
     def copy(self):
-         return CaseInsensitiveDict(self._store.values())
+        return CaseInsensitiveDict(self._store.values())
 
     def __repr__(self):
         return '%s(%r)' % (self.__class__.__name__, dict(self.items()))
 
 
 class LookupDict(dict):
     """Dictionary lookup object."""
 
     def __init__(self, name=None):
         self.name = name
         super(LookupDict, self).__init__()
 
     def __repr__(self):
         return '<lookup \'%s\'>' % (self.name)
 
     def __getitem__(self, key):
         # We allow fall-through here, so values default to None
 
         return self.__dict__.get(key, None)
 
     def get(self, key, default=None):
         return self.__dict__.get(key, default)