add node modules to repo

node_modules/traverse/examples/leaves.js

@@ -0,0 +1,15 @@
+var Traverse = require('traverse');
+
+var obj = {
+    a : [1,2,3],
+    b : 4,
+    c : [5,6],
+    d : { e : [7,8], f : 9 },
+};
+
+var leaves = Traverse(obj).reduce(function (acc, x) {
+    if (this.isLeaf) acc.push(x);
+    return acc;
+}, []);
+
+console.dir(leaves);