Fix = key in Webtiles in Opera.

Sadly, this breaks numpad + on Opera: there doesn't seem to be a way to
distinguish it from the = key (both are keydown 107, keypress 43, with no
shift).
Make Large Rocks penetrating

Silently brand all large rocks as penetrating.
This is mostly a buff to Stone Giants and Cyclopses.
I considered accompanying this change with a reduction to damage,
but I'm ambivalent on that.
Be more careful about checking a base type.

Bad behaviour can't actually happen currently (no weapons etc. are
penetrating, and WPN_ROD doesn't even really exist), but better safe
than sorry.

Also fix up formatting.
Simplify.
Make polymoths not spawn

They might have a place in Sprint.
Move "Gram" to _real_weapon_name_.

Not that separating _real and _joke has any meaning, but as long as it
is here, come on, this was the sword of Sigmund himself.
A bunch of quotes.
Player doll tiles (Team Impy, 7490)
Tengu tile tweaks (pubby, 7545)
Djinn hair tiles
Fix djinn player doll tiles
Fix dwhip doll tile
Improve some citations.
Ugly things (Bloax, 7483)