Bukkit

+2 new mailbox textures, red and green
+Admin commands including: send, bulksend, spawn, and open
+Version command
*Tells in package how to detach items
*/mail 2 shows max attachments
*Track players in mailboxes.yml from first login
*Fixed mailbox ownership bug
*Attempted to fix the bug of the Mailbox Recipe not working on right-click
*Cleaned up the code and put some stuff in their own methods