Changed vertexData to verticesAndNormals in Gear classes and changed some implementation details of CylindricalGear
Added bore radius to InvoluteGearForm
Little implementation change in CylindricalGear
Few renaming things in Gear classes
Removed the old Gear classes again, as they mysteriously appeared again. PLEASE don't add them another time
Merge branch 'master' of https://github.com/happah-graphics/happah