install gulp to process code

node_modules/mute-stdout/index.js

@@ -0,0 +1,19 @@
+'use strict';
+
+var ogWrite = process.stdout.write;
+
+var muteStdout = { mute: mute, unmute: noop };
+
+function noop() {}
+
+function mute() {
+  muteStdout.unmute = unmute;
+  process.stdout.write = noop;
+}
+
+function unmute() {
+  process.stdout.write = ogWrite;
+  muteStdout.unmute = noop;
+}
+
+module.exports = muteStdout;