I would like to do some cleanup tasks. I have identified two to start with. What do you think?
1) Move org/exolab/castor/xml/gui/* into a new directory org/exolab/castor/xml/tools/gui/
Rational: That GUI is not a GUI for Castor. It's a tool not directly related to Castor.
2) Remove the classes org.exolab.castor.util.List and org.exolab.castor.util.Iterator and replace all usage of those classes with the J2 equivalents.
Rational: We no longer support anything before 1.3. List, according to its JavaDoc, is not complete yet. Rather than have to maintain copies of the official Java code, let's get rid of the copies and use the official JDK methods.