Vagrant integration

To get into hawk development quite easy i have started to integrate vagrant and chef provisioning for a multinode setup.

Currently this setup is still missing an automated start of the development environment but you can already see in which direction it gets with a nice vagrant integration.

If the pull request is fine i can squash the commits for a clear git history.
The changelog is presently missing a whole lot of stuff which happened in 2014 which needs to be pulled in from the SLE/openSUSE .changes file. @krig - we should fix this, but note that this omission is no reason to not accept this pull request, and should be blamed on me, not @krig ;-)