Slim Arduino Uno Case

I wanted a very slim case for my Arduino Uno R2 that still allows to access the headers.

The open hardware logo used is the DXF version by Andrew Plumb which can be downloaded from http://oshwlogo.com/.

Source repository is on [github.com](https://github.com/t-paul/things/tree/master/things/arduino-case) with viewer at [fabfabbers.com](http://www.fabfabbers.com/models/id/23/arduino-case-by-t-paul).