Replace literal numbers with usages of the ProtocolConstants class.
Replace direction strings with concrete enums
Update packets for MINECRAFT_14_11_a
Enable 14w11 support, changing servers is a bit iffy though due to EntityMap not being complete.
Split up EntityMap into different protocol versions
Add 14w11a EntityMap support
Add 'Camera' to 14w11a's EntityMap
Add 'Combat Event' to 14w11a's EntityMap
Update Team packet's field names. unknown -> nameTagVisibility, unknown2 -> color
Use ProtocolConstants instead of raw protocol numbers