This patch, based on code sent to us by <Someone> well over a year ago, addresses
bugs recently resurfaced. Namely, that lava does not generally do anything
to monsters or objects that land in java. Newly renamed minliquid() handles
both water and lava, and new fire_damage() is used similar to water_damage().
Patch from <Someone> to the list on 10/01/2001. The changes cause riding a steed
into water to result in a dismount, and, if the steed can't survive in
water, the death of the steed, with the usual pet-death penalties.
