add makefile and linting helper script

Makefile

@@ -0,0 +1,9 @@
+test: lint go-test
+
+lint:
+	./lint.sh
+
+go-test:
+	go test
+
+.PHONY: lint test

lint.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+set -e
+
+# Test to make sure we didn't get any linting errors
+#   while also writing the linting errors to stderr
+# DEV: `test -z` ensures the value is empty
+# DEV: `| tee >(cat >&2)` takes the stdout from `golint` and replays it on stderr
+#   this way we see the linting errors while still capturing them for `test -z`
+test -z "`golint | tee >(cat >&2)`"