- scriptified PowerStrength.

This revealed an interesting bug: When the berserk fadout formula was changed in 2005 the result was essentially broken, resulting in values around 7000 - it only worked by happenstance because the lower 8 bits of the resulting values just happened to work to some degree and never overflowed. But the resulting fade was far too weak and a slightly different handling of the color composition code for the VM made it break down entirely.
This restores the pre-2005 formula but weakened intensity which now comes a lot closer to how it is supposed to look.

src/s_advsound.cpp

@@ -2127,6 +2127,7 @@ CCMD (soundlist)
 		{
 			Printf ("%3d. %s **not present**\n", i, sfx->name.GetChars());
 		}
+		Printf("    PitchMask = %d\n", sfx->PitchMask);
 	}
 }