remove packages to get npm audit to pass (#11)

* remove packages to get `npm audit` to pass

* fix grunt.config.init() call lost in split up

* remove integration tests, they don't work and nobody is running them

* fix upload_to_s3 task after refactor

scripts/mocha.js

@@ -0,0 +1,7 @@
+process.argv.splice(
+  2,
+  0,
+  ...[require.resolve('../test/unit/index.js'), '--reporter', 'nyan']
+);
+
+require('mocha/bin/mocha');