Fixed entity motion condition
Incremented speedMeasure() size
Using Vectors for explosions
Low level PMF level interface
Better explosion damage calculation
Fixed #784 Slabs replacing other slabs
Fixed Player::setSpawn()
Faster level generator
Merge branch 'master' of https://github.com/shoghicp/PocketMine-MP

Conflicts:
	src/world/Explosion.php
	src/world/Level.php