Update gear: reforged.
Revise perp sets
Gear updates
Generate error message if Daurdabla isn't in inventory, and player attempts to
adjust the Daurdabla mode.
(Temporary?) fix for referencing set tables within the spell table.  The
targets table is constructed as a set, but doesn't use the set library, so
doesn't have access to the normal class functions.
Spell table was changed.  Use .recast_id now instead of .index, to determine
the ID number of the recast table entry for the spell.
Revise to make it easy to adjust to using the Terpander for +songs instead of
the Daurdabla.