Fix unnecessary requests in /balances
Add new dbinterface
Clean up new dbinterface
Remove readme details on postgres
Add default db file path configuration
Re-initialize database before test run
Suppress database logging during tests
Resolve absolute db path in config
Switch new db interface to use db_path config
Always save transaction ledger
Fix transaction hash lookup for validated db entries
[FIX] check for issuer for non-xrp payments
Merge pull request #156 from nerdylocks/payments-issuer

[FIX] check and validate issuer upon payment
Add proper final transaction result check
Fix transaction hash lookup
Do not attempt to resubmit persisted pending transactions
[FIX] respond with 404 for actNotFound
[TASK] respond with 500's for failed requests
[FIX] use 500 for api errors

402 for requestFailed has been phased out
[TASK] introduce DatabaseError

for communicating errors on the database level