Make system for upgrades backport to 5.0.X

Squashed from:

1.
Build tarballs for upgrade

Usage:
  make fuel-upgrade      - create upgrade for master node (without openstack patches)
  make openstack-upgrade - create upgrade for openstack
  make upgrade           - create full upgrade

orig.Change-Id: I1a0b003d9efd5d85cdae7a41bbbea3eb8415a7b5

2.
Add config.yaml to upgrade tarball, update package structure

orig.Change-Id: I596d10833c979cd8941c4771e9f5fdeebe4c9948

blueprint upgrade-to-5-0-1

Change-Id: I0f8d8b8393eba9d9438382395bc6602660f1a1a4
Merge "Make system for upgrades backport to 5.0.X" into stable/5.0