More noise changes

- When you hear a death cry, you are told the direction it came from.

- Large battles can now be heard a few rooms away.

- Indoors, sounds can propagate a much larger number of rooms than outdoors
  (since indoors rooms are much smaller than outdoors places).
  So, if you hear some close noise while you're indoors, don't assume that
  a group is exactly two rooms away - the distance might be larger.