Add force reset around calls to actual connection from stubs, to ensure

compatibility with version of httplib/urlib2 in python 2.7.9. Closes #130.

vcr/stubs/__init__.py

@@ -236,6 +236,10 @@ class VCRConnection(object):
                     self._vcr_request
                 )
             )
+            # This is imported here to avoid circular import.
+            # TODO(@IvanMalison): Refactor to allow normal import.
+            from vcr.patch import force_reset
+            with force_reset():
                 self.real_connection.request(
                     method=self._vcr_request.method,
                     url=self._url(self._vcr_request.uri),