killbill-aplcache

finishing up credits; including unit tests for auto_invoicing_off …

scenarios

Merge branch 'integration' of github.com:ning/killbill …

into integration

Conflicts:
	invoice/src/test/java/com/ning/billing/invoice/tests/DefaultInvoiceGeneratorTests.java

Applied code review comments from Jeff and fixed some issues …

uncovered by tests.

Merge from integration

Junction tests for AUTO_BILLING_OFF tag

Jucntion tests for AUTO_BILLING_OFF

Added auto-invoice-off tag processing. Tests still to be added.

Fixing failing overdue tests

first passing unit test for credits (account credit)

start of invoice credits; fix for TagMapper bug (manifests …

during removing setting an invoice as written off)