Upgrade protobuf to 3.0.0b2 to fix unicode bugs
Upgrade protobuf to 3.0.0b2 to fix unicode bugs

OpenBazaar/Network,cpacia/OpenBazaar-Server,OpenBazaar/Network,tomgalloway/OpenBazaar-Server,tomgalloway/OpenBazaar-Server,OpenBazaar/Network,OpenBazaar/OpenBazaar-Server,saltduck/OpenBazaar-Server,tyler-smith/OpenBazaar-Server,tyler-smith/OpenBazaar-Server,OpenBazaar/OpenBazaar-Server,tyler-smith/OpenBazaar-Server,saltduck/OpenBazaar-Server,saltduck/OpenBazaar-Server,cpacia/OpenBazaar-Server,OpenBazaar/OpenBazaar-Server,cpacia/OpenBazaar-Server,tomgalloway/OpenBazaar-Server