Parameterized Development Board Holder

Derived from Arduino DUE mount by MaikaiGuy: http://www.thingiverse.com/thing:37278

This should work for many small microcontroller development boards.

These dimensions are intended to fit a SimpleCortex board, which is the board I needed to mount. It provides a solid, but easy snap-fit, while preserving access for all on-board IO connectors, etc.

A number of features can be turned on and off, including tapered screw holes in the bottom, a finger hole in the bottom (useful for helping