[Request] Schedule: add missing eventRender hook

[thejewdude]

fullcalendar provides a hook to call a function while an event is being rendered.
http://fullcalendar.io/docs/event_rendering/eventRender/

This function runs for every event that is being rendered. I need this hook to make sure fullcalendar doesn't render repeating events that have an end date. However it is missing in the current implementation.
Are there any plans to add it, or can I open a pull request?