vitamin deficiency (trunk only)

vitamin deficiency (trunk only)

     Implement something <Someone> suggested a long time ago:  eating a
disenchanter corpse has a chance to remove an intrinsic.  Uses the same
routine as nighttime gremlin attacks, which chooses an intrinsic randomly
and attempts to remove it, so has no effect if it chooses one the hero
lacks.  This can be used to remove "aggravate monster" but is much more
likely to target something the player wants to keep.  [By the way, a lot
of potential candidates are missing:  sleep, shock, and disintegration
resistance and teleport control come immediately to mind.]

     Also, it has been bugging me that you can get both strength and
fire/cold/shock resistance from the same fire/frost/storm giant corpse.
The code prevents mind flayer corpses from conferring both intelligence
and telepathy, so strength handling was inconsistent (even though it
predated mind flayers...).  This causes strength boosting to be treated
as an extra candidate when selecting an intrinsic to confer, so you'll
either get strength or resistance (which might be a no-op) but not both
from those giants.  And it special cases the other giants to have the
same 50% chance for boosting strength, even though the alternative in
their case is to do nothing instead of trying to confer something else.
Lastly, it now gives a message when you succeed in gaining strength.