Changed uSound.pas so that music will still play if music is enabled and sound is disabled. Effectively, isSoundEnabled represents only sound effects and does not include music (and I have replaced the places where both are concerned with a logical combination of the two). Still need to figure out why isSEBackup is used and if my changes affect it.

[patterns]
**.h = native
**.c = native
**.cpp = native
**.lua = native
**.txt = native
**.pas = native
**.inc = native
**.hs = native