Added final boss type (for now), Stitches. Stitches is a mess of zombie parts stitched together. He is extremely durable and can deal massive melee damage, but that's not what makes him deadly. Stitches has the ability to throw hooks at the player and reel the player in closer to him. To make things worse, Stitches also puts out a stinky aura which deals poison damage to the player if the player is close enough. Stitches is a force to be reckoned with.

Made several minor changes here and there.