Added go vet step to circle.yml

circle.yml

@@ -16,7 +16,9 @@ test:
   override:
      # FMT
      - test -z "$(gofmt -s -l . | grep -v Godeps/_workspace/src/ | tee /dev/stderr)"
-     # Go lang test
+     # GO VET
+     - go vet ./pkg/...
+     # Go test
      - godep go test -v ./pkg/...
      # js tests
      - ./node_modules/grunt-cli/bin/grunt test