Update changelog to 0.12-a0-1808-gb42fc8b.
Whitespace fixes.

Remember to run checkwhite, folks.
Another changelog item (HangedMan).
Up monster LRD power.

It was kind of useless before; this makes it respectable again.
Catacomb-style wall tiles (denzi, 3870)
Be more consistent about lich skeletalness.

Judging from both monster and player ::is_skeletal(), DCSS liches aren't
actual skeletons (they are just desiccated corpses I guess), so player
liches shouldn't be LRDable and take extra damage from Shatter (this was
inconsistent with monster liches).
Remove a duplicate tile
Revert "Prune duplicate code for LOS attack spells."

The new version of the code isn't particularly well written (though,
apparently, better off than the code it replaces), exhibits problematic
behaviour (#6566), and the original motivation for doing so (having
monsters cast OTR) isn't as pressing due to the lack of monster designs
that use it (there's still the rod of venom, but that can wait for someone
to give this issue the attention it deserves).

Fixes #6566.

This reverts commit b4b189bfd0645a11f2c25c6fb702732516f5bb33.
Nudge up monster Shatter damage.

Previously it was less threatening than the damage-tweaked LRD, which
doesn't really make sense.

This increases the damage by 50%, which should make it more
appropriately threatening against the average player.
Don't let trap_monster_doors_1 generate too many early 8s and 9s.

This adjusts the monster set to be 000009 on D <= 10 (the 9 is there to
make it more interesting than just the plain dungeon); 000099 or 000999
on D:11-20, and the original behaviour on D:21+ (either all 8s or
000998).

This may need to be adjusted further, but it is a step in the right
direction - watching players die horribly to multiple D:11 stone giants
just doesn't seem fair.
Add spelling fixes.
Don't call nausea "sickness" (Napkin).
Set aux_source for LRD to report death-by-monster-LRD properly.

Without this change, you get the boring "Hit from afar by foo" instead
of, say, "Killed from afar by foo ...with a blast of rock fragments" /
"blasted by foo (blast of rock fragments)".
Change the monster-inflicted injury mirror message to not use a pronoun.

"It" is not appropriate for monsters with gender or uniques, and we
can't get the proper pronoun if the monster is dead from the damage
anyway.
Use wall_catacombs for Sprint, ZotDef, and Arena games
Give apocalypse crabs a corpse tile
Don't credit player for monsters directly shattered by monster LRD.
Fix god-forbidden items not being recoloured

Caused by b7904db5ad04c762b.
Give HaFi and KoFi bucklers, unrestrict HaFi.

Even though they can use shields (unlike spriggans, which already received
bucklers), SIZE_SMALL species are clearly better suited to use bucklers.
Restore save compatibility with 0.11 final.

This does not include trunk versions older than some time after 0.11
branching, although you can upgrade such saves in two steps, by loading in
0.11 and then in current trunk.  I doubt this will lead to any troubles
as 0.10 saves are not compatible anyway.