Allow both 1.5.2 and 1.7.2 clients to connect (BungeeCord)

Hey Spigoteers,

Me and Joehot are trying to get BungeeCord working so that it will accept both 1.5.2 and 1.7.2 clients on the Hub portion of the network he runs. Any help is greatly appreciated.

Thanks,
~EliteDuck