* Add method to CommandManager to retrieve command names by group * Add ListCommands To list command groups loaded by cliff Change-Id: I37fe2471aa2fafa8aa223159452d52b1981021d6
Lists versions of installed python modules (Origianlly proposed as 'version list') Change-Id: I76a51d3d6783f46ef2daa0a41626019a880a2a50