smoketest: deploy keystone without apache on SUSE
add frontend uwsgi
change default frontend to uwsgi
ensure that only one node is set for the keystone-server role
Merge pull request #129 from rhafer/feature/roxy-smoketest-on-sles

smoketest: deploy keystone without apache on SUSE
propose controller node for keystone server
Merge pull request #133 from MirantisDellCrowbar/feature/uwsgi/master

[feature] add frontend uwsgi
Merge pull request #134 from mapleoin/one-role

Got +1 and got smoketested, merging.
use FQDN, not the object
Merge pull request #137 from jsuchome/intended-roles

Got +1 and smoketesed => merging.