Fix HOLD state

When responding to a build complete event, don't do anything to
the node if it is in the HOLD state.

Change-Id: I37e458198bfcd08472d07ca9c206c1b4551f3341
Fix fake provider

We now expect a metadata attribute on objects returned by
novaclient.

Change-Id: Id3bf754e2e745cc3fdee35bda532928e7d7b347a
Add default location for config file

Change-Id: Ib8ae5a70c9e260302ff16f20c676aa8707acd58c
Merge "Add default location for config file"
Merge "Fix HOLD state"