Bixler 3 Wing Support with servo connctions

After several flights (and crash too..) wings of my Bixler becomes loose so that I was forced to install shims to keep them in right position.
So I decided to make some measures on the plane fuselage and print a joiner for the wings that last more than foam.
This part adds 2,5 mm between wings and fuse so the two tie-beam works properly.

Decided to add some stuff on the design using also the two servo connections by mariors50 - http://www.thingiverse.com/thing:637406. I add STL files for t