rackspace: cluster 'show' - first implementation
rackspace: add some logging
Rackspace: working show/sync/kick/launch/bootstrap/kill on simple server
Rackspace: corrections to Ironfan DSL/Provider
fix: knife ssh without explicit .pem file reference
Rackspace: add implied_volumes in rackspace DSL
Rackspace: add server tags + code cleanup (some)
Rackspace: update README
Merge branch 'develop' of github.com:Technicolor-Portico/ironfan into rackspace

Conflicts:
	lib/chef/knife/cluster_ssh.rb
add reboot option
updates + cluster reboot
more readable flavor names
Rackspace: fog API change => create_server
Merge branch 'rackspace' into develop