(svn r13200) [0.6] -Backport from trunk (r13023, r13066, r13074, r13137):

- Fix: Do not send rcon commands of the server to the first client but do directly execute those on the server (r13137)
- Fix: For multiheaded engines, halve power and running cost when used instead of when loading, to allow callback values to work properly (r13074)
- Fix: Loading of TTDP savegames with rivers in them [FS#2005] (r13066)
- Fix: Revert changes to multihead engine weight -- the original values were correct (r13023)

src/oldloader.cpp

@@ -1645,7 +1645,13 @@ static bool LoadOldMain(LoadgameState *ls)
 				 * clear it for ourselves and let OTTD's rebuild PBS itself */
 				_m[i].m4 &= 0xF; /* Only keep the lower four bits; upper four is PBS */
 				break;
-			default: break;
+
+			case MP_WATER:
+				if (GetWaterClass(i) == 3) MakeRiver(i, Random());
+				break;
+
+			default:
+				break;
 		}
 	}