Parsing "Added to Collection"

[isarmstrong]

Hey Tim,

I discovered you this morning thanks to ZeroSpree's beautiful adaptation of your code: http://codepen.io/zerospree/pen/sjcoa/

I had initially suggested to him that his pen measure "Added to Collection", then quickly realized he was bootstrapping off of your code then styling the returned data. It would take me all morning to browse through what you've done and even start thinking about a fork, so in the meantime I'll just make a request :)

Calculating the ratio of "hearts" to "collections" is probably (not guaranteed, but likely) to yield a good look at whether a person's pens are simply pretty (click-bait / experimental) or useful. I'm basing that on the notion that professionals add things to collections for use in actual projects. However one uses the data though, it would be cool to have access to within the class.