Using set -e in all of our scripts will prevent some subtle bugs
from slipping in, and will allow us to enforce use of set -e with
tooling.
This change also adds -u and set -o pipefail in the less complex
scripts where it is unlikely to cause problems. A follow-up change
will enable those options in the complex scripts so that if it
breaks something it can be reverted easily.
Change-Id: I0ad358ccb98da7277a0ee2e9ce8fda98438675eb
On fedora 18 the package pyOpenSSL is conflicting with one of the
packages needed to build the bootstack image. The problem gets sorted
if you install pyOpenSSL at the beginning of the image building process
and this is what this patch is doing.
Change-Id: I681683b81ad638dfeb690fde1bc7d08a2116aaed
