Add node modules and new code for release (#57)

Co-authored-by: taakleton <taakleton@users.noreply.github.com>

node_modules/underscore/modules/now.js

@@ -0,0 +1,4 @@
+// A (possibly faster) way to get the current timestamp as an integer.
+export default Date.now || function() {
+  return new Date().getTime();
+};