FrSKY D4R-II mount with Naze32 compatible mounting holes (V2)

UPDATE: This design is flawed in several ways. I've created (I think) a much better design here:
http://www.thingiverse.com/thing:1433589

I'll leave this up for anyone who might want it.

OLD INFO:

This is an new take on http://www.thingiverse.com/thing:905667 .

This fixes the issues with the back mounting holes being inaccessible. The 45deg arms are now symmetrical and farther apart which should help clear top plates better.