Update dependencies to latest, structured logging, remove unused code and bump version

Author: ofpiyush

Dockerfile

@@ -3,7 +3,7 @@ WORKDIR /go/src/github.com/verloop/nsync
 ADD . /go/src/github.com/verloop/nsync
 RUN curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
 RUN dep ensure
-RUN go install .
+RUN CGO_ENABLED=0 go build -ldflags "-s" -a -installsuffix cgo -o /go/bin/nsync .
 
 FROM gcr.io/distroless/base
 COPY --from=build /go/bin/nsync /