Two V:$ subvaults.

Signed-off-by: Steve Melenchuk <smelenchuk@gmail.com>
Fix incorrect size / shape of an unrelated V:$ quadrant.
Add johnstein to mailmap.
Don't crash when generating corpses of certain monsters

Ugly things or other corpse-leaving monsters with species type that
has COLOUR_UNDEF would cause this. There's a hack in place to prevent
crashes with &oX in wizmode, which can be removed when the relevant
code is cleaned up.
Simplify.
Salamanders as a player race.

They start off with tough skin 2 (+2 AC), rC- and a naga-like tail
(can't wear boots but can wear naga bardings). At XL7 and XL14 they gain
one level of rF and slow movement respectively; at XL14 they also gain
the ability to swim through lava. (Perhaps their own internal fire is
slowly burning itself out...)

They are medium-sized and have base statistics of 7 Str / 8 Int / 9 Dex,
and have an excellent aptitude for fire magic (cf. "legendary affinity for
fire"); a very minor affinity for long blades, polearms, and bows (the
weapon types most of the monsters can start with), and a poor affinity
for ice magic.

They have +1 HP, +1 MP, -1 exp, are as magic resistant as a naga, and
have the same stealth modifier as minotaurs (slithery, but fiery).

I can imagine many character builds being successful with this
combination of attributes; let's see how that pans out.

Includes a couple of base tiles which may or may not need improvement.