hopefully killed the windows-revision problem. If WITH_REV is defined,
for both Windows as *nix system _openttd_revision is filled with normal
info, else _openttd_revision is set to 'norev000'
-Fix: Small possible server-crash
endian-problems. To fix this, we are sending dparams byte by byte
(instead of an uint32). Because of this dparam is sent
not-uint32-endian-safe, but char-endian-safe. Too bad dparam can no
longer be used for normal stuff (which is currently not the case) (tnx
to Tron and Bjarni)