qTip2/qTip2 — pull request #640 by dylanpratt (2013-12-19 18:51:22+00:00)
Title: Added existence checks to support using the destroy method while the tooltip is being created

I was getting errors when I called the destroy() method on a qtip's api before the qtip rendered on the page (while it was still under construction). I added a few checks for this.destroyed or existence to avoid these errors.