[CHORE] Use api-core for set_last_payment_hash
Merge branch 'master' of github.com:ripple/gatewayd
[FEATURE] Add deposit completion callback.
[BUG] Query correct pending withdrawals.
[BUG] Use properly queued withdrawals for callback.
Merge pull request #103 from ripple/deposit-callback

[FEATURE] Add deposit completion callback.