Bukkit

Three simple, but important bug-fixes which occurred while creating new stores. Turns out you couldn't create any new functioning stores with v0.10.

• I had used world.toString() instead of world.getName() when creating the store, which was causing the config to save like CraftWorld{name='world'} instead of simply world.
• I had confused an i with an j which sometimes was causing a crash.
• I also had put an else where I shouldn't have, which resulted in the entrance and exit variables of the store not saving the first time.

Creating stores should work flawlessly now :)