code: function (keys, preserveElems) {
              var i = 0;
              var len = keys ? keys.length : 0;
              for (i; i < len; i++) {
                  this.remove(keys[i], preserveElems);
              }
              return this;
          }
docs: Remove's all subviews matching any
  key in a list of keys
  @memberOf SubViewManager#
  @param  {String[]} keys
  @param {Boolean} [preserveElems=false]
  If true, the views' elements will not
  be removed from the DOM
  @return {SubViewManager}