Configure glance CA certificate path in cinder

A new configuration option is available in cinder for setting
the CA path. Configure this option in devstack when native SSL
or TLS proxy is configured.

Change-Id: I2cf9a3b8ba8e4896bd98efe0fb6f7d62fb279d90
Closes-Bug: 1384267
correct templated catalog driver class

Now the templated catalog driver class "TemplatedCatalog" is removed
in this patch https://review.openstack.org/#/c/125708/2 use
"keystone.catalog.backends.templated.Catalog" instead.

Change-Id: Ib9c8ea557e7171ff0c78a1e10d752ed564aff9e7
Closes-Bug: #1386562
Merge "correct templated catalog driver class"
Merge "Configure glance CA certificate path in cinder"