Game server: fixed a check in CUser::ObjectEvent().
BUGFIX: Sitdown/standup flag is now set by the client (logic was screwy).
BUGFIX: Imposed limit on zone IDs in ZONE_INFO (otherwise it could overflow into a valid zone ID range and wreak havoc).
BUGFIX: Fixed a potential null pointer crash.
Added *.conf (i.e. rinetd.conf) to the ignored file list.
Wrapped up the threading code into its own class.
Doubled the AI socket send/receive buffers to hopefully resolve a DC issue when there's too many mobs.
Moved redundant CUser::SendTargetHP() calls into CUser::HpChange().
Replaced a residual Win32 atomic counter reference.