Pine A64+ Case - VESA mount

Pine A64 computer case, VESA mount

A remix of the Pine A64 case by FrankLumien:
http://www.thingiverse.com/thing:1287387

Version 5 available.

I eliminated the Pine A64 logo and added generic slots instead.
Use M3x25mm screws (something like [these](http://www.mcmaster.com/#93395a216/=12a4kal) ).

I added an option to have VESA mounting holes on the bottom half to mount the enclosure on the back of a standard 100x100mm or 100x75mm monitor mount.

For ease of assembly, rebore the