code: function uninstall(names, callback) {
    callback = utils.defineCallback(callback);
    if (_.isString(names)) {
      names = [ names ];
    }
    var errs = [ ];
    var numPlugins = 0;
    names.forEach(function(name) {
      rimraf(pluginsDir + "/" + name, cb);
    });
  
    function cb(err) {
      if (err) {
        errs.push(err);
      }
      if (++numPlugins === names.length) {
        return callback(errs.length === 0 ? null : errs);
      }
    }
  }
docs: Uninstall plugin(s)
  
  @param  {String|String[]} names - name of plugin(s)
  @param  {Function} [callback]