[jdom-interest] Factories

[Jason Hunter]

FYI, I just made an interesting commit.  People not on the commits list 
might want to take a look:

http://lists.denveronline.net/lists/jdom-commits/2004-February/001745.html

This change also made me think, should JDOMFactory really be an 
interface, a class, or an abstract class?  The problem with an interface 
is that if we add methods after 1.0 it breaks everyone implementing the 
interface.  With a class or abstract class, we can add w/o breakage so 
long as the new methods can have a standard implementation.

-jh-