Update to Freeciv server 11547e6d8f
Update to Freeciv server 11547e6d8f

Freeciv commit message:
Add onetime_pct property for goods.

See hrm Feature #672710

(Signed-off-by line removed from Freeciv commit message to avoid confusion)

andreasrosdal/freeciv-web,andreasrosdal/freeciv-web,andreasrosdal/freeciv-web,andreasrosdal/freeciv-web,andreasrosdal/freeciv-web