Initial version for repair chnage logic
Implement partial repair in invoice
Fix complication after partial repair work
Fix tests after Implementation of Partial repair and move of CBA into invoice DAO
Merge remote-tracking branch 'origin/invoice-rework' into invoice-rework-2

Signed-off-by: Pierre-Alexandre Meyer <pierre@ning.com>

Conflicts:
	invoice/src/test/java/com/ning/billing/invoice/generator/TestDefaultInvoiceGenerator.java