Begining of minecraft authentification for the client.
Doesnt connect to the server yet, but pretty close :D

Signed-off-by: Karang <arthur.hennequin@free.fr>
Continuation of client connection to server
Merge pull request #576 from Karang/master

Begining of minecraft authentification for the client.
Merge pull request #578 from L5D/master

Add PlayerHealthHandler
Merge pull request #579 from L5D/master

Add PlayerRespawnHandler
More client protocol : PlayerBedHandler, PlayerPositionLookHandler,
EntityAnimationHandler

Signed-off-by: L5D <L5D@L5D-PC>