Sub directory for default controller route codeIgniter 3

A while I go I asked a question on here how to have sub directory for default controller:

Original question here: http://forum.codeigniter.com/thread-63443.html

Thank to @Martin7483  for providing the MY_Router.php code to help me.

I would thought I would share the MY_Router.php on GitHub

GitHub Repo Link Here

There's only one rule - please don't tell anyone to go and read the manual.  Sometimes the manual just SUCKS!