artsy/eidolon — pull request #306 by orta (2014-11-10 20:22:57+00:00)
Title: @ashfurrow => Card handling fixes

You can only have one reader instance in memory at any time, so we have to be significantly more aggressive about `nil`ing existing instances.

Fixes #300

![Giphy](http://media4.giphy.com/media/MbMHnivVvsNr2/giphy.gif)