Added parted to the list of packages to install on debian family

Parted is not installed by default on Debian system, and provides the command
partprobe needed in disk-image-create.

Change-Id: Ie03173398e425d65a908f25a880538a4912494b2
Added devtest for fedora 19 64bit

Change-Id: I31a4a73425f5c5a6d04b731061105143accaf3ab
increased nodes memory

with only 1024 RAM mysql fails to start on undercloud

Change-Id: Ic24cb8431c617b6c754ed43f6b430e30680fa8f0
fixed ordering of steps

missing patches should be applied once repos are cloned/pulled

Change-Id: Ic3cbd8082296e8f96764d98bd361a3c831fe4448