Don't sell Route Manager's vehicle

[minchinweb]

Original author: w.minc...@gmail.com (July 04, 2012 15:02:52)

Then route manager works by cloning a vehicle. Don't sell this one when there are too many ships on the route.

Original issue: http://code.google.com/p/openttd-noai-wmdot/issues/detail?id=51

[minchinweb]

From w.minc...@gmail.com on July 11, 2012 03:17:45
Maybe this should be done by referencing groups rather than individual vehicles. I worry that replacing a vehicle would change it's ID number.