(svn r27592) [1.6] -Backport from trunk:

- Fix: Automatic servicing of road vehicles compared path finder costs with tile distances, thus vehicles went to depots which were factor 100 too far away [FS#6410] (r27586)
- Fix: Enforce a non-zero load amount for all vehicles, so that vehicles can process their cargo reservations [FS#6437] (r27585, r27584)
- Fix: Do not decrease the column width of depot windows when vehicles with high unitnumbers leave [FS#6415] (r27583)
- Fix: Button size computation in script configuration window [FS#6461] (r27581)
- Fix: [NewGRF] Set date of last service on construction also for wagons and articulated parts [FS#6395] (r27580)

src/articulated_vehicles.cpp

@@ -433,6 +433,7 @@ void AddArticulatedParts(Vehicle *first)
 		v->x_pos = first->x_pos;
 		v->y_pos = first->y_pos;
 		v->z_pos = first->z_pos;
+		v->date_of_last_service = first->date_of_last_service;
 		v->build_year = first->build_year;
 		v->vehstatus = first->vehstatus & ~VS_STOPPED;