v1.2.0 - Add event listener info to this variable
Added
- parentWindow.eventListener: added new property to 'this' within event listeners scope. It may be used to remove itself after executing it once for ex. Contains name of the callback (event) and listener id.
- removeEventListenerSelf: shorthand to 'removeEventListener(this.eventListener.event, null, this.eventListener.id)' within event listeners scope.