Use ChatColor.COLOR_CHAR for colours instead of § - this means no weird file encoding glitches when syncing with git or whatever.
Redo most of configuration stuff (again) - should now support anything that whatever version of Bukkit you're using supports for ItemStacks - so this means ItemMeta (display names and lore), along with loads of other cool stuff.
Fix bug with multiply configuration setting zero items
Change some internals from using arrays to ArrayLists - you might get a slight perfomance increase because of the amount of times I was resizing arrays, but it shouldn't be too noticeable.
Better 1.6.2-R1.0 compatibility (I'd like to say I did something for this, but really, there wasn't much that needed changing - it tends to be a very stable codebase)
Add last-update.yml file - this indicates the last version of the plugin the config was updated with - will probably be used in future for migrating configs so you don't have to rewrite them again.
Add some graphs on metrics for the types of item being used and the mode you're using (multiply or flat rate) - unfortunately with Metrics down, I haven't been able to properly test this, so we'll see in the near future whether it actually works.
You're going to have to rewrite most of your config again if you're updating from an older version - sorry! Make sure to back up your old config - it WILL get deleted.
There's a bug with the "multiply" configuration in where the amount of item required will keep multiplying upwards and then reverse back to negatives, allowing free enchants.