failing test for receiving and npatrons of unclaimed account
fix handling of unclaimed tips in fake_payday.sql
Failing test for pledging amount
Fixed handling pledging amount in fake_payday.sql
failing test for pledging amount to locked accounts

Participant.update_giving computes this correctly, but fake_payday.sql doesn't.
Fixed handling pledging to locked accounts
Merge pull request #2785 from gratipay/fix-npatrons-for-unclaimed

Fix npatrons for unclaimed accounts