Reported by eakaye: orcish hero has maximum strength of 18/50 but
hero poly'd into an orc was given 18/100 strength. Also, a comment
from vultur-cadens pointed out that orcish heroes start with poison
resistance while monster orcs lack it.
Even though the boost to 18/100 is only temporary until the poly
times out, make orcs a special case where strongmonst from poly'ing
into them only gives 18/50 strength instead of 18/100. Adopt the
suggestion that Uruk-hai be an exception and continue to give hero
poly'd into them 18/100.
If any gnome becomes strongmonst (currently none are), treat them
as 18/50 too. Elvenking and elf-lord are strongmonst; treat their
forms as plain 18 though, matching the limit of elf heroes. Lesser
monster elves aren't strongmost.
While in there, add another special case so that hero poly'd into a
giant gets 19 strength. Monster giants are still plain strongmonst
so might warrant some sort of adjustment.
Give orcs poison resistance, but eating their corpses doesn't provide
an opportunity to confer it. Note goblins and hobgoblins still don't
have the resistance (to distinguish them from orcs a bit).
Take away strongmonst from orc shamans and give it to orc mummies.
Human mummies should have it too (at least according to movies) but
I didn't alter them becuase they're already pretty dangerous at the
point they start occurring. Take away strongmonst from plain 'elf'
placeholder.
New: when hero polymorphs into a form that lacks the strongmonst
attribute, take away any exceptional strength (drop 18/01 through
18/100 down to 18; as mentioned above, the drop is only temporary).
There's no attempt to set the maximum even lower for wimpy forms.
Fixes#679
b6a3d4b984