[Webtest] [dev] refactoring

[Dierk Koenig]

> 1- please try not to reinvent the wheel! The Jakarta libs used 
> contain many utility methods that are surely better 
> tested as the one we may write ourself. Before writing a new 
> utility, just look if it doesn't already exist

I agree, recognizing that I'm not aware of all features
that are available in the jakarta libs.
(I'm not even sure about what's new in the JDK's :-)
What libs would you suggest to include?

cheers
Mittie