Bukkit

0.91

• Add: Metrics support (see http://mcstats.org/learn-more/ for more info)
• Fix: disallow selling in Creative mode

0.9 (Zarius)

• Fix: non-stackable items no longer stack when buying multiple
• Added: now checks for available inventory space (so you don't waste money if your purchase doesn't fit).

0.8 (Zarius)

• Support for Vault
• Added /sell <quantity> (from current held stack only)
• Added /sell all (sells all of the same item from your inventory)

0.7b2

Modifications by Zarius:

• fix for new Bukkit Version
• code cleanup
• start of coding for buy/sell with exp (doesn't work yet)

@Zarius: Thanks for your help.