Fix for lastest bukkit dev build and config derp

Configuration derp fix.
You can now define drop and crate drop rates properly without breaking the /drops list command
Removed the drop. from the fallowing in the config and the code.
itemDropLimit: 9
itemDropReset: 10080
itemDropRollMaxTime: 70
itemDropRollMinTime: 30
crateDropLimit: 3
crateDropReset: 10080
crateDropRollMaxTime: 70
crateDropRollMinTime: 30