[Freeciv-Dev] Production change messages (PR#428)

[Christian Knoke <ChrisK@xxxxxxxx>]

These seem to be incomplete. If production
changes *automatically*, when a building in the
city is finished, it tells you what has been
finished, but not what the production has
changed to. Even a started wonder is not reported.
If you change *by* *hand*, this all will be reported.

Regards,

Chris