enable upgrading raven weapons in cwk

[dugtrio]

with ToT coming up and a new set of high level/end game gear coming i think its a good time to add the upgrading option for the raven weapon to cwk Fiona npc
with the exception of Night's Raven Claw that should be changed from being 40 att and dexless to 42 att 120 dex req to fit with the rest of the upgraded weapon theme

upgrading the basic raven weapon would cost:
if dusk - tao of harnomy 
if night - tao of shadow 
if dawn - tao of light 
+
basic raven weapon 
+
100 crystals of some kind

[manfroy]

bump