killbill-memoizeit

Modified TestPaymentApi to use test helper

Introducted TestHelper for boiler plate test set up code; Changed …

payment_id and payment_date in invoice payment to payment_attempt_id and payment_attempt_date; Dao tests

Changed invoice payment notification

Added sql for payment dao

Fixed after merge from master

Merge remote branch 'upstream/master' into payment-plus-account

[maven-release-plugin] prepare for next development iteration

[maven-release-plugin] prepare release killbill-0.1.0

Remove unecessary ADN clause to update (tests fail)

Minor reshuffle in account dao