cent01="centos-7.0-1406"
centos="centos-7.x-1611"
deb01="debian-8.4.0"
+deb03="debian-8.7.1"
debian="debian-8.6.0"
fc23="fedora-23"
fc24="fedora-24"
ub14="ub14.04.1"
ub15="ub15.10"
ub16="ub16.04"
+ub17="ub17.04"
ub1601="ub16.10"
ubuntu="ubuntu-14.04.1"