Update armor to use gen_sp_armour instead of last_heal.
can_use_shield added to necessary arcs.
Add dev/scripts directory, which contains some handy scripts I wrote
for updating on the items.
Add item_power to the armours - needs to be done for rest of equippable
items.
MSW 2002-07-14
git-svn-id: svn+ssh://svn.code.sf.net/p/crossfire/code/trunk/arch@1657 282e977c-c81d-0410-88c4-b93c2d0d6712
