Master must be informed when Workers complete their assigned iterations.

```
This enhancement must occur prior to the completion of the timing 
enhancement.  The MasterProcessor should set up a loop to 
receive "completion" messages from all of the processors it has farmed 
work out to.


```

Original issue reported on code.google.com by `litci...@gmail.com` on 24 Apr 2008 at 1:15
