Changes to web flow action proposal

[Tom Zeller]

>>That puts an awful lot of discipline on implementers of doPostExecute to
>>catch all exceptions. [snip] I hope you'll consider a try/catch block that wraps
>>doPostExecute if you go with this design.
>
> I don't have any problem with that.

Good catch.

I was thinking : Actions do not throw Exceptions, they return strings.
Of course, that is not correct.