Refactor messageRetriever dispatch handler error handling
Refactor messageRetriever dispatch handler error handling

hoffmabc/openbazaar-go,gubatron/openbazaar-go,OpenBazaar/openbazaar-go,gubatron/openbazaar-go,OpenBazaar/openbazaar-go,hoffmabc/openbazaar-go,hoffmabc/openbazaar-go,OpenBazaar/openbazaar-go,gubatron/openbazaar-go