Hi Chris H. It's found here in my humble little blog. Check out the Appendix section for the correct link (it's next to the stuck-out link which is obsolete) to Chris K's 2012 blog post on Moodle & LTI. You can also download the zip file from Chris K's original blog post - check the comments section of my blog post.
LTI and Moodle
Wordpress and Moodle LTI
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