Fixed mailbox ownership-checking
Added support for longer names

Names of up to 30 characters are now supported (previously 15)
Cleaned up command processing function
Fixed name length > 15 support
Actually fixed it this time.

Minecraft only supports names up to 16 characters anyways, so 16 max it is. Un-screwed up usage of substrings.
Merge pull request #1 from Jikoo/master

Fixed 16 char name support
Updated plugin.yml - added PlanarWarp
Updated to v0.3; switched to config-based ownership checking
Merge pull request #2 from guitardudematt/master

Update to version 1.3