Parametric Mirror Clip

I was excited when I found JohnnyR's mirror clip (http://www.thingiverse.com/thing:977) on thingiverse because I wanted to be able to help my wife hang a mirror in our new house. Sadly the design was too thick for our mirror and would have left too much room between the wall and the clip. I decided the best solution to the problem was to just redesign it in OpenSCAD to make it parametric so no one would have this problem again.