[#976180] Back out new event system until it can fire multiple events of one type with events of that type being removed while it fires
1.5.4
Fix Bug 977087 - Fix custom event shim for IE8.
[#968874] Disable keyboard controls on YouTube by default.
[#968874] Do not change time if time is already changed because we don't want to fire seeked events when we don't actually seek.
new tag 1.5.5
[bug965051] - Forced to use https protocol for jwplayer videos
[#980834] Fixed crash when soundcloud fails.
[#980834] Ensure proto properties can be redefined.
[#888930] Fixes for vimeo paused state
1.5.6
Fix Bug 1005106 - JWPlayer buffered data functions in IE8
1.5.7