update to games/netpanzer port

[Guido Falsi]

I've sent an update to my port games/netpanzer. The new version is
required for network games, as many changes also in protocols have been
made.

Is there any specific problems with the PR? I understand a game is far
less important than other things, but if someone could just have a look
at it and in the case commit or give some feedback I'd be very happy.

here is the PR:

http://www.freebsd.org/cgi/query-pr.cgi?pr=77905

Thanik you very much in advance!

-- 
Guido Falsi <mad at madpilot.net>