ROOM-ECHO       "periodic random echos when a player is in room"

  delay         delay in pulses (20 pulses = 1s) between echo attempts
  
  echo1         Three possible echos. Prefixed to the echo-string is a
    :           percentage value indicating the chance at which the echo
  echo3         should be output. If one echo was shown, the others will
                not be tested.


Example:
  1. room-echo [enter]
       delay: "2000"
       echo1: "50,The floor-boards are creaking."
       echo2: "30,The leaves on the ground fissle as the wind blows ..."
       echo3: ""