code: function(config) {
  
  		if ('id' in config.fields) Lava.t("Id field in MetaStorage is not permitted");
  
  		this._config = config;
  		this._createFields(config);
  		this.initFields(); // MetaStorage is constructed directly, not via App class
  
  		var field;
  
  		if (Lava.schema.DEBUG) {
  			for (field in this._fields) {
  				if (this._fields[field].isCollectionField || this._fields[field].isRecordField)
  					Lava.t("Standard Collection and Record fields will not work inside the MetaStorage");
  			}
  		}
  
  		this._record_constructor = Lava.ClassManager.getConstructor('MetaRecord', 'Lava.data');
  
  	}
docs: Create an instance of MetaStorage
  @param {_cMetaStorage} config