Commit moves away from using url and port separetely
for keystone configuration. Instead a singular auth_uri
can be specified. It still supports setting up
port explicitly, however if none is provided, a default
port 80 is assumed.
Story: 2000995
Task: 4174
Needed-By: Ia95b3bef2734d639c6fec57484b60bc5377d659f
Change-Id: I22686d05670fc6c947611f8044dea498239a4212
9463c20a9c