Nova smoketests can spin up a VM and ping it. [1/1]

We can now ping a deployed node via the nova-fixed network.

More thurough smoketests to come later.

 crowbar.yml                      |    4 ++++
 smoketest/00-deploy-nova-vm.test |    7 +++----
 smoketest/modify-json            |    1 +
 3 files changed, 8 insertions(+), 4 deletions(-)

Crowbar-Pull-ID: 12745a5647dbac55ecb9d7f3ddef5b9f4e11f5e7

Crowbar-Release: pebbles