Update server_functions

The protective box is not needed on Chernarus.

If other maps need it we are better off spawning a permanent box around
the debug area once, instead of constantly creating new boxes every time
a player logs in.

SQF/dayz_server/compile/server_checkIfTowed.sqf

@@ -0,0 +1,13 @@
+private ["_vehicle","_player","_attached"];
+
+if (DZE_HeliLift) then {
+	_vehicle = _this select 0;
+	_player = _this select 2;
+	_attached = _vehicle getVariable ["attached",false];
+	if (typeName _attached == "OBJECT") then {
+		_player action ["eject",_vehicle];
+		detach _vehicle;
+		_vehicle setVariable ["attached",false,true];
+		_attached setVariable ["hasAttached",false,true];
+	};
+};