Hammer the provisioner into a semi-deployable state for CB2.0

The provisioner now owns the apache2 cookbook, and it is not yet capable
of handling state transtions for other nodes.  It shouls be able to boot
Sledgehammer, though.
Merge pull request #197 from VictorLowther/pull-req-master-c3b0cb7e352feeff6881ccd3369d63b7170a505b

https://github.com/crowbar/barclamp-provisioner/pull/197

Merged by devtool for VictorLowther