Return proper BlockIterator index, throw more exceptions, improved blockQueue performance
Change RuntimeException to InvalidStateException on BlockIterator
Use proper indexes on Living->getLineOfSight() when a max length is set
Improved Level->getTile() to a direct lookup instead of linear search
Reenabled collision against entities on move
Merge branch 'master' into 0.10
Added SetDifficultyPacket
MCPE protocol 20