Revision 1729501

Clean up the DataBindingTest so that it actually works now.  This actually
only involved simplifying the renderers to only implement the "toString(Object)"
methods.

But, make the values more interesting, and add explanatory stuff to the GUI
so it is more understandable what is actually happening.

This is a merge of revision 1729480 from trunk to branches/2.0.x with the
HyperlinkButton changed to just a Label, and the Java 7 changes reverted.