commands: init command extended
* adds default node * adds test groups: 'Administrators', 'Powerusers', 'Users' * adds test users: 'admin', 'poweruser', 'user' * adds KVM present notification for Administrator * shares 'vm' network with groups
* adds default node * adds test groups: 'Administrators', 'Powerusers', 'Users' * adds test users: 'admin', 'poweruser', 'user' * adds KVM present notification for Administrator * shares 'vm' network with groups