Merge pull request #76 from matthijs2704/indev

Added sleep event to TODO.md
Remove text files from indev. No need to maintain two copies.
Fix library loading when the lib directory isn't there
Fix some of the block/item placing bugs
Add a player chat event.

Plugins trying to format chat should cancel this event at the
HIGHEST priority level, and rebroadcast the message using
Player.sendMessage().