[Freeciv-Dev] (PR#11744) gui-win32: city report worklist tab needs "change" button

["Jason Short" <jdorje@xxxxxxxxxxxxxxxxxxxxx>]

<URL: http://bugs.freeciv.org/Ticket/Display.html?id=11744 >

The win32 citydlg has a "change" button in the main tab of the citydlg.
 But I'm used to the gtk2-client's method of doing things (especially
since popup windows don't work so well for me) so I go straight to the
worklist tab.

First of all, this isn't really the worklist it's the queue.  But this
is internal freeciv hacking terminology so it doesn't really matter for
the tab name.

Now I can change my warriors (at the top of the queue) to a settlers by
adding a settlers at the end and then removing the warriors.  But it
would be easier to do it the gtk2-client way, via a change button.  I
should just be able to click on settlers then click "change" to change
the active (and only the active) production to settlers.

-jason