Massive domain model, and hence functionality changes.  
added the loanbalanceadjustment to the sql scripts 
Modified interest calculator to use new domain structure.
Added in a loan balance calculator.  removed the interest calculator
Lots of refactoring to redo the way loan balances are calculated.
Missed some classes
Adding in some unit tests.
Changed the way loan balances are calculated.
More enhancements to loan balance calculations.
Finished up changes to balance calculations, and fixed the UI to work
with new domain structure.  Ready to merge to master.