Uses default gulp build task

Dockerfile

@@ -25,7 +25,7 @@ COPY . /satbd
 RUN go get $(go list -e -f "{{.Imports}} {{.TestImports}}" . | tr "[" " " | tr "]" " " | xargs go list -e -f "{{if not .Standard}}{{.ImportPath}}{{end}}")
 RUN go build
 RUN go test
-RUN gulp build
+RUN gulp
 
 EXPOSE 33276