Sync with latest oslo-incubator

Last commit: 32e7f0b56f527427544050f251999f3de588ac93

This patch syncs the python-keystoneclient with olso-incubator as I
need this patch 4ef01931 which fixes a bug that's I am hitting in
another client which uses the keystoneclient.

Closes-bug: 1277565

Change-Id: I22f10f4fe27be16a6808b75c154ee342fea2bdda
Merge "Sync with latest oslo-incubator"