Corrupted flower looting fix in Felwood

This implements the looting of the corrupted flowers in Felwood. They
were missing from the gameobject_loot_template table
Corrections made to the Quiver records

Tables item_template and creature_item_template have incorrect field
values for the Quiver items. Many were set as bag when they should be
quiver. A few were set as material type 255 (not defined), but should be
8: leather.
Merge pull request #167 from Chuck5ta/Rel20

Corrupted flower looting fix in Felwood