Help signs don't make sense in the beginning

```
Look at thhis screenshot:

http://img138.imageshack.us/img138/1457/java2012050214331712.jpg

We have a population of 8100 and that way 8100 worker (hey, who needs kids
anyway):

Looking at the statistics we see that we need 0 workers right now (all
buildings aren't working) but still there's a signs on the buildings signaling
missing workers.

Looking at the statistics again we realize there is no power output ( because
our nuclear power plant isn't working) but thankfully there's no need for
energy either. Still there a "no power" signs on the buildings.
```

Original issue reported on code.google.com by `norbert....@gmail.com` on 2 May 2012 at 12:40