First attempt at adding Openstack support
Added missing require for openstack_credentials
Fixed YAML load_file typo
Updated fog_key_pair with support for Openstack key pairs
Working openstack boot, still requires IP associate though
Successfully associated floating IP
Added security group example and IP convergance message
Updated openstack provider to use machine name for instance_name
Updated openstack provider to use machine name for instance_name
Updated transporter to also try private ip address if public is nil
Removed specific references for instance options
Merge remote-tracking branch 'upstream/master' into openstack

Conflicts:
	lib/chef_metal/recipe_dsl.rb
Merge remote-tracking branch 'upstream/master' into openstack
Merge branch 'master' into openstack
Updates to match current master
Removed unusable bootstrap convergance strategy.
Merge branch 'openstack'

Conflicts:
	lib/chef_metal/provisioner/fog_provisioner.rb