switch to stable/havana for pfs
cleared pfs_deps and fixes
add sysfsutils for caching
bnc#836363 - applying xen proposal fails after moving away from kvm
bnc#836372 - can not switch compute nodes from xen to kvm
smoke should be executable
Merge pull request #258 from MirantisDellCrowbar/bug/smokeperm/roxy/master

smoke should be executable
only require certificate files for controllers (bnc#851514)
selecting controller node according to intended role
don't use storage nodes for compute
add debug attribute to schema
Merge pull request #255 from jsuchome/release/roxy/master

applying xen proposal fails after moving away from kvm
Merge pull request #254 from mapleoin/debug-attr

add debug attribute to schema
Update schema json for schema-revision attribute
use "install_packages" function to install smoketest dependencies
smoketest: remove no longer used "fixed_ips" array
smoketest: try to avoid bash v4 features

SLES does only have a bash-3.2
Merge pull request #262 from dirkmueller/release/roxy/master

Update schema json for schema-revision attribute
Merge pull request #249 from rhafer/feature/roxy-smoketest-on-sles

Smoketests passes merging
Disable COW images for Xen

COW Images are based on QCOW2, which is not supported
by Xen (at least SUSE's version of it).
use compute intended role for compute nodes