Extended XML UI support in new release of XUI

Version 1.02 is a significant revision of XUI with several new features
and some refactoring of the existing classes.
 
XUI has been enhanced by the addition of an XML based file description
of XUI pages. Now an application can be built almost entirely of XML
thereby increasing the speed at which a working application can be
created.  Some of the basic components have also been enhanced and some
new components have been added.
 
The library has been refactored to remove some of the dependancies on
the AWT and to include support for Swing. The refactoring also allows
new component libraries to be registered with the component factory.
 
Both documentation and the sample applications have been improved to and
restructured to make the ideas behind XUI more apparent.
 
An ANT build file has been added so that you can quickly reconstruct the
library, documentation and the website.
 
The source code for the latest release contains some additional packages
including a prototype set of widgets for Swing and an experimental IDE
for building XUI applications via XML.