Drastically improving the messageNotUnderstood title

Hi guys

As I exposed newbies to our wonderfull debugger I think that we should
change

MessageNotUnderstood: Class>>#message

into

an instance of Class did not understand message

To me this simple change would have a HUGE impact on making the debugger
first contact a lot more friendly.

Any taker?
I'm off with a company today.

Stef

--