Printrbot Play E3D V6 Adapter Plate and Cooling Fan Mount

This is inspired by the [Printrbot simple adapter plate](http://www.thingiverse.com/thing:906608), your commonplace groovemount, and my need for a place for a cooling fan.

*edit*: I have an untested version 2 up now if you wanna try that [version 2](https://www.thingiverse.com/thing:2770276)