New month, new tween.js release!
I've also taken a first stab at implementing the repeat() feature. Here's an example. Now you can tell a tween to keep repeating itself a number of times, or just forever, by passing Infinity instead of a number. How cool is that? Infinitely cool! Ahem. Please excuse the pun.
Also, I can proudly announce that tween.js has, at the moment of writing this, exactly 100 forks. That is great! Thanks to all the contributors... and potential contributors! :-)