Fix setup script misspelling and pkill flag
Fix setup script misspelling and pkill flag

pkill -9 docker was killing setup_docker.sh execution, so add -x flag.

Added check for root permissions and host type.
Added executing user to docker group.

Change-Id: I82cfad64fa737666d888e2ab9350c8d42e2150bf

brk3/kolla,rahulunair/kolla,negronjl/kolla,negronjl/kolla,intel-onp/kolla,invenfantasy/kolla,dardelean/kolla-ansible,rajalokan/kolla,LoHChina/kolla,fdumpling/kolla,mandre/kolla,limamauricio/mykolla,LoHChina/kolla,openstack/kolla,rahulunair/kolla,fdumpling/kolla,toby82/kolla,toby82/kolla,rajalokan/kolla,negronjl/kolla,LoHChina/kolla,dardelean/kolla-ansible,toby82/kolla,coolsvap/kolla,dardelean/kolla-ansible,limamauricio/mykolla,invenfantasy/kolla,jakedahn/kolla,fdumpling/kolla,jakedahn/kolla,chenzhiwei/kolla,meticulo3366/kolla,brk3/kolla,chenzhiwei/kolla,jakedahn/kolla,tonyli71/kolla,stackforge/kolla,mandre/kolla,meticulo3366/kolla,GalenMa/kolla,nihilifer/kolla,coolsvap/kolla,invenfantasy/kolla,intel-onp/kolla,mrangana/kolla,mandre/kolla,GalenMa/kolla,openstack/kolla,stackforge/kolla,HackToday/kolla,nihilifer/kolla,tonyli71/kolla,stackforge/kolla,HackToday/kolla,chenzhiwei/kolla,HackToday/kolla,coolsvap/kolla,limamauricio/mykolla,rajalokan/kolla,mrangana/kolla