Events with a presentationTime in the past are now removed.

Created by: JoeEyles

Hi,

This is a fix for an issue where the array of pending media events would at no point remove events with a start time (presentation time) in the past. If an event stuck in this state repeats (for example with a looping pseudo-live MPEG-DASH stream) then future instances of this event would be discarded without being triggered.

Joe