code: function (map) {
              var key;
              for (key in map) {
                  if (map.hasOwnProperty(key)) {
                      this.addInstance(key, map[key]);
                  }
              }
              return this;
          }
docs: Add instances using an object that
  maps subview keys to the instances
  @param {object} map
  @return {SubViewManager}