Merge branch 'order_occupancy-sx' into jgrpp

Conflicts:
	src/lang/english.txt
	src/saveload/extended_ver_sl.cpp
	src/saveload/extended_ver_sl.h
	src/settings_gui.cpp

src/order_cmd.cpp

@@ -245,6 +245,7 @@ Order::Order(uint32 packed)
 	this->dest    = GB(packed, 16, 16);
 	this->next    = NULL;
 	this->refit_cargo   = CT_NO_REFIT;
+	this->occupancy     = 0;
 	this->wait_time     = 0;
 	this->travel_time   = 0;
 	this->max_speed     = UINT16_MAX;