cannonball and slings

Originally posted by suza12
On rathena/doc/item_db.txt

View: For normal items, defines a replacement view-sprite for the item (eg:
      Making apples look like apple juice). The special case are weapons
      and ammo where this value indicates the weapon-class of the item.

For weapons, the types are:
0: bare fist
1: Daggers
2: One-handed swords
3: Two-handed swords
4: One-handed spears
5: Two-handed spears
6: One-handed axes
7: Two-handed axes
8: Maces
9: Unused
10: Staves
11: Bows
12: Knuckles
13: Musical Instruments
14: Whips
15: Books
16: Katars
17: Revolvers
18: Rifles
19: Gatling guns
20: Shotguns
21: Grenade launchers
22: Fuuma Shurikens

For ammo, the types are:
1: Arrows
2: Throwable daggers
3: Bullets
4: Shells
5: Grenades
6: Shuriken
7: Kunai
should be 8>>>>> 7: Cannonballs
should be 9>>>>> 7: Throwable Items (Sling Item)