Fix translating many errors to 400; also added 409 case
Fix translating many errors to 400; also added 409 case

redbo/hummingbird,creiht/hummingbird,nadeemsyed/hummingbird,redbo/hummingbird,troubling/hummingbird,nadeemsyed/hummingbird,troubling/hummingbird,creiht/hummingbird,corystone/hummingbird,corystone/hummingbird