Support 1.8, 1.7, 1.6, 1.5, 1.4.7 on spigot 1.9

Not complete yet, use with caution.

Wontfix issues:

• [1.6 and earlier] Stats are not sent
• [1.5 and earlier] Can't control vehicle

================

Spigot: http://www.spigotmc.org/resources/protocolsupport.7201/

Jenkins: http://build.true-games.org/job/ProtocolSupport/

================

Licensed under the terms of GNU AGPLv3