[FIXED]Only allow Redesign Once

[Arakash]

Another place this would work, i just learned today. Ill edit it into the first post as well.
In the factory screen, when you resize the factory, there seems to be no way to tell its actually happening. Until you get the message its finished.

Would be good if it told you how far away it was like the R&D screens do too.

Yes, thats what i was thinking as well, i agree.
Currently if you build a factory, it gives you a completion date when you look at the factory part of the city view on the world map.
This should probably be in place for factory resizing as well.