Fix non-ascii issue with object commands
Fix non-ascii issue with object commands

Escape the container and object name whenever it is used
as URL.

Change-Id: I2343c1e67843ab53773b3fca6e258dc329cd9573
Closes-Bug: #1503508

openstack/python-openstackclient,BjoernT/python-openstackclient,BjoernT/python-openstackclient,redhat-openstack/python-openstackclient,redhat-openstack/python-openstackclient,dtroyer/python-openstackclient,openstack/python-openstackclient,dtroyer/python-openstackclient