13-01-2001 Unangband 0.4.8g Bugfix release

- Fixed stores so that they should work in
campaign mode correctly now. We should still
ensure that you get great items as quest rewards,
currently, they are just generated as very deep
items.
- You can now specify what items a store sells
in u_info.txt and with what frequency these items
are chosen. Note that you must specify at least
15 items per store.
- Added more monsters.
- Made ogres also orcs, dragonflies also dragons
and dragon bats also dragons.
- Changed monster recall so that mixes of two
monster types are displayed e.g "mix of orc
and giant".
- Added insects and plants, which are hurt by
slay animal weapons, but not summoned by summon
animal spells.
- Add sense natural creatures flag to slay
animal weapons and 2 artifacts.
- Added 'correct' identification of when you
have an item that provides telepathy/sensing,
but this may cause a big slow down.