EventLogger: Change default file extension to .log, not .csv.
EventLogger: Change default file extension to .log, not .csv.

pizcogirl/Astron,pizcogirl/Astron,blindsighttf2/Astron,pizcogirl/Astron,blindsighttf2/Astron,ketoo/Astron,ketoo/Astron,ketoo/Astron,ketoo/Astron,blindsighttf2/Astron,pizcogirl/Astron,blindsighttf2/Astron