code: function getCommandNames(cmds) {
    var commands = _.map(cmds, '_name');
    commands = commands.concat.apply(commands, _.map(cmds, '_aliases'));
    commands.sort();
    return commands;
  }
docs: Compile all available commands and aliases
  in alphabetical order.
  
  @param {Array} cmds
  @return {Array}
  @api private