added default constructors for Attribute and Table
started playing with transitions
partial work on Insertion
update parser
 - strip table and attribute names from quotes
add method to update table value for each attribute
initial working on transition to xml
design update for transitions
 - methods are now implemented in abstract class Transition
 - add Update class
 - rework with JAXB (more detail)
 - add unmarshal in Testing
minor bug fix
ANTLR auto generation change
 - move generated files to package  parser
 - change file paths to relative
change package name
new datasets
fix minor XML related bug
minor fixes
 - parser fixes
 - use new swing theme (Nimbus) if available