endgame: high altars, offering the Amulet to Moloch (trunk only)

Several small related changes that ended up being not quite so small:

     Allow the Amulet of Yendor to be offered on the altar in the temple
of Moloch's Sanctum level; doing so is fatal.  Fake ones can be offered
too, but that doesn't do anything special (they act the same as they do in
the temples on the Astral level).  Unlike in the endgame, the Amulet and
its fakes aren't listed as likely candidate for #offer's pick-an-object
prompt; like the endgame, corpses must be carried rather than being on
the altar in order to be sacrificed.

     Prevent non-chaotics from destroying the chaotic high altar on the
Astral level via same-race sacrifice.  From a bug report.  (Chaotics converting non-chaotic high altars
via same method was already handled.  I think the behavior for ordinary
altars if wrong here; why should a chaotic altar be destroyed this way?)

     Prevent demon princes and demon lords from being summoned in the
endgame.  Lesser demons answer instead.  Mostly prevents Yeenoghu from
being summoned by a chaotic who performs same-race sacrified on the
chaotic high altar, but might affect the Wizard and arch-liches too.

     Identify (via ':', ';', '/') altars in temples on the Astral and
Sanctum levels as "high altars" rather than just as "altars".  '/' and ';'
commands now work on those when you're adjacent, like they do when used on
adjacent high priests; from farther away, the altars' alignment is still
suppressed.

doc/fixes35.0

@@ -176,6 +176,8 @@ worn item transformed by polymorph remains worn if feasible
 can't dip or apply grease to a worn item that's covered by another worn item
 hero poly'd into stone golem and wielding cockatrice corpse casts stone-to-
 	flesh at self to become flesh golem will revert to stone if no gloves
+demon lords/princes can't be summoned to the elemental or Astral planes
+same-race sacrifice can't damage high altars
 
 
 Platform- and/or Interface-Specific Fixes
@@ -262,6 +264,7 @@ multiple squeaks for squeaky boards
 include time, user ID, and play mode in paniclog entries
 add oracle and rumor regarding priestly donations
 anti-magic traps have alternate effect on targets who have magic resistance
+the Amulet can be offered to Moloch
 
 
 Platform- and/or Interface-Specific New Features