Merge pull request #576 from Karang/master

Begining of minecraft authentification for the client.
Add PlayerHealthHandler

Signed-off-by: L5D <L5D@L5D-PC>
Merge pull request #578 from L5D/master

Add PlayerHealthHandler
Add PlayerRespawnHandler

Signed-off-by: L5D <L5D@L5D-PC>
Merge pull request #579 from L5D/master

Add PlayerRespawnHandler
More client protocol : PlayerBedHandler, PlayerPositionLookHandler,
EntityAnimationHandler

Signed-off-by: L5D <L5D@L5D-PC>
Merge pull request #580 from L5D/master

More client protocol
More protocol PlayerAbility & ServerPlugin

Signed-off-by: L5D <L5D@L5D-PC>
Merge pull request #581 from L5D/master

More protocol PlayerAbility & ServerPlugin
More empty handler for client protocol

Signed-off-by: L5D <L5D@L5D-PC>
Merge pull request #582 from L5D/master

More empty handler for client protocol
Really close to be connected to server.
Authentification went well, now we need to correctly configure the
packet encryption.
Signed-off-by: Karang <arthur.hennequin@free.fr>