RAMPS 1.4 case box for Kossel Mini

Kossel Mini RAMPS1.4 and LCD enclosure for 15x15 OpenBeam
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I used and modified following things:
* [Smart Graphic LCD Case](http://www.thingiverse.com/thing:505355) - added additional holes on the back for mounting on my RAMPS1.4 box
* [Knob for RepRap Full Graphic LCD](http://www.thingiverse.com/thing:397890) - adjasted a hole, I made it "D" shape for my Full Graphic LCD
* [RepRap Full Graphic LCD button](http://www.thingiverse.com