install gulp to process code

node_modules/glob-watcher/lib/debounce.js

@@ -0,0 +1,26 @@
+'use strict';
+
+function debounce(fn, delay) {
+  var timeout;
+  var args;
+  var self;
+
+  return function () {
+    self = this;
+    args = arguments;
+    clear();
+    timeout = setTimeout(run, delay);
+  };
+
+  function run() {
+    clear();
+    fn.apply(self, args);
+  }
+
+  function clear() {
+    clearTimeout(timeout);
+    timeout = null;
+  }
+}
+
+module.exports = debounce;