Updated .gitignore to exclude stl, png, dxf, svg.

Signed-off-by: Thomas Helmke <thomas.helmke@gmx.de>
Updated femur. Made a 2d projection.

Signed-off-by: Thomas Helmke <thomas.helmke@gmx.de>
Merge branch 'master' of git@github.com:Syralist/yet-another-hexapod.git