Try to fix auto-ID of randart jewellery.
Having fixed #1083, remove the comments pointing out the problem.
Improve display of "tried" for artefacts (IMO, at least)
Document current/proper usage of wear_id_type().
Migrate old saves to the post-#1083 world.
Allow manuals of Unarmed Combat to generate.
Fix unknown-jewellery identification blocking (#6850)

An unknown piece of jewellery should block observation-based
identification of other unknown jewellery.  However, this was
happening based on ISFLAG_KNOW_PROPERTIES, not KNOW_TYPE---and the
former is meaningless for non-artefacts.  Now check KNOW_PROPERTIES
only for artefacts and only when the artefact special properties are
relevant to the identification.

The bug was exposed by 4bb9ef0, which stopped setting
ISFLAG_KNOW_PROPERTIES on non-artefact jewellery.
Allow LRD targetting to default to map edge (#6852).
Don't crash when firing close to the map edge (#6853).
Fix inconsistencies and duplicate code regarding hibernating monsters.
Fix tracers considering cold-vulnerable monsters as immune to hibernation
Don't raise tomb walls on top of monsters
Make walls created by Corruption displace monsters and items

Instead of simply placing the new wall on top of these things, try
to move any monsters at the location of a new wall aside. If there
is no room to do this, place floor instead.
Fix scrolls of summoning being colored harmful to good god worshippers
Remove haste self from deep troll shamans.

This has been brought up with me a few times; it essentially goes
against their intended pure support role, and makes them significantly
less threatening on their own (particularly in relation to a vault that
made it in just before 0.12 branched).
(cherry picked from commit 4b4bd114002b02d290187b6b9e144dab8c5ddaa3)
Merge branch 'randart-jewellery-id' into stone_soup-0.12 (#1083)
Don't advertise weapon blessings for kittehs.
Don't ask kittehs about pain branding, simplify.
Don't give Kiku's Necronomicon a redundant inscription.
Update changelog