First support for md extensions; Package all needed dependencies in the repo

Source/node_modules/babylon/bin/babylon.js

@@ -0,0 +1,16 @@
+#!/usr/bin/env node
+/* eslint no-var: 0 */
+
+var babylon = require("..");
+var fs      = require("fs");
+
+var filename = process.argv[2];
+if (!filename) {
+  console.error("no filename specified");
+  process.exit(0);
+}
+
+var file = fs.readFileSync(filename, "utf8");
+var ast  = babylon.parse(file);
+
+console.log(JSON.stringify(ast, null, "  "));