Addresses #2676 created by @KolyaKorruptis, which points out that jQuery 3 has deprecated .on('ready')
There were only two instances where slick used, and one was (I think superfluously?) leveraging jQuery's .off method. I deleted that line and updated the other to .ready(...function...)
Tests w/ latest jquery
Let me know if there's any issues!
update on ready event listeners to jquery 3 compliant syntax