the connect commands supports adding the port with ":"
like "connect 10.1.2.3:27016" - if no port is set, it defaults to 27015
net_port is still used as the port to listen on and to send from.
And suddenly hosting a server on linux works at least locally
(with client and server on the same machine).
Even though there are still strange bugs (massive lags in one
direction, doesn't work in LAN), at least it works at all now.
If the window loses focus com_pause is set to 1, when it regains focus
it's set to 0.
The behaviour on Win32 stayed the same (the implementation is less
hacky though) and Linux now matchces that.
