widget for showing progress in absolute values

```
It would be nice to have widget which shows current values. 

Eg. pb=ProgressBar(maxval=1000,widgets=[ETA(),SomeWidget()]) 
...
..
pb.update(100)

shows:
01:11:00 100/1000



```

Original issue reported on code.google.com by `lukaszm...@gmail.com` on 3 Aug 2010 at 7:46
