Courier

Fixes:

• "No deliveries after reload" (ticket #5)
• "Postmen are spawned outside even if it's raining" (ticket #4)
• Previous version had to be reloaded twice for default additions to the config to become active (thanks to GICodeWarrior for pointing it out)

New:

• Nothing. This was a quick fix due to ticket #5 being considered high priority.

 Known Issues:
 - User does not know how long a message can be
 -- Additionally console does not accept as long messages as can be viewed with the map item
 - CRITICAL: Running out of MapIds!
 - MINOR: Database is only saved when storing new messages. File does not update just because people read mail.
 - INTERESTING: People who receive (but they still cannot read of course) other's mails are logged as such.
 -- Remove or do something useful with?
 - Postmen teleport away if out in open areas
 -- Please vote for https://bukkit.atlassian.net/browse/BUKKIT-366 :)