Update Deployment::Deploy action to use new model
Remove nested load_paths to avoid problems

moving concerns to its namespace
#destroy is always true

or it raises on error
Fix creation of nested Hostgroups
Add check to remove the nest method when upgraded to 1.5
Somehow the stylesheets modification for engine went missing.
Fix hostgroup lookup
Merge pull request #32 from pitr-ch/orchestration

Update Deployment::Deploy action to use new model, other minor improvements
Do not use deployment name in hostgroup name

to remove the duplication from
"deploy-default/OS/OS: Controller (Neutron)"
reducing it to
"deploy-default/OS/Controller (Neutron)"
Merge pull request #33 from knowncitizen/engine-stylesheets-fix

Somehow the stylesheets modification for engine went missing.
Merge pull request #34 from pitr-ch/orchestration

Do not use deployment name in hostgroup name