start a bm poser node and ping it
Remove key-pair patch

It was only there as an example
Add LogLevel=QUIET to ssh

This removes the recurring messages about adding key to host file
(the hostfile is /dev/null)
Make wait_for mor flexable

Adding LOOP nums and SLEEPTIME as params
Add apply_patches function

The old loop failed if no matching patches were found
Patch path to rootwrap in tripleo-image-elements

Revert when merged
https://review.openstack.org/#/c/29403/
Patch to remove the nova-rpc-zmq-receiver service

Its causes a timeout waiting for firstboot to finish
Revert after https://review.openstack.org/#/c/29489/