Fix module loading within node

lib/handlebars/compiler/index.js

@@ -0,0 +1,7 @@
+// Each of these module will augment the Handlebars object as it loads. No need to perform addition operations
+module.exports = require("./base");
+require("./visitor");
+require("./printer");
+
+require("./ast");
+require("./compiler");