lost ball and chain (trunk only)

Saving the game while punished, not carrying the attached ball,
and while swallowed by a purple worm resulted in losing the
ball and chain.

Since the required information was not being written to the
save file at all, I couldn't come up with a clean way to do this
for the branch, and preserve save file format. I could think
of lots of kludgy ways to do it (insert ball and chain into
the hero's inventory prior to saving, and remove it on restore, etc.)

doc/fixes35.0

@@ -145,6 +145,8 @@ meditating monsters stop meditating when affected by something which wakes
 monsters capable of hiding can't do so when trapped or while holding you
 limit recursive calls to spoteffects (poly'd hero fell into water, reverted
 	to human because of it, fell into same water, then crawled out twice)
+ensure that the punishment ball and chain make it into the save file after being
+	temporarily orphaned from the normal chains in the swallowing code
 
 
 Platform- and/or Interface-Specific Fixes