Crowbar version 1.2

Crowbar v1.2 Openstack

Crowbar for Openstack Diablo v1.2 RC2

DE452: Make the framework run with more node atomicity. Or at least c…

…onsistency.

Issue crowbar#4: the asset tag lookup function fails is ohai doesn't …

…populate a chassis/serial_number field. This seems to happen on VirtualBox installations.

Issue crowbar#4: the asset tag lookup function fails is ohai doesn't …

…populate a chassis/serial_number field. This seems to happen on VirtualBox installations.