Imports
- github.com/golang/protobuf/proto
- github.com/inconshreveable/log15
- github.com/spf13/viper
- golang.org/x/net/context
- google.golang.org/grpc
- google.golang.org/grpc/credentials
- google.golang.org/grpc/encoding/gzip
- google.golang.org/grpc/keepalive