Music Events

Fixed a progress string issue.

Corrected evaluation tick rate affecting parameters with timers, such as persistence.

Adjusted fade_out behavior so that, if an event becomes active during a fade-out, instead of using fade_in, the fade-out timer reverts counting up to its initial value instead of counting down to zero. 

Fixed the gui_muffling and underwater_muffling parameters not working.

Fixed resume_from_timestamp parameter bugging out when a track was about to end.