Install python-glanceclient to make image upload work

Up to now SUSE based installs did not support uploading glance images during the
chef-client run. But in order to pass the smoketests this needs to work.
smoketest: install the right packages on SUSE
Merge pull request #143 from rhafer/feature/roxy-smoketest-on-sles

Feature/roxy smoketest on sles