Update examples to use a "front" camera
Merge branch 'master' of https://github.com/brodykenrick/text_on_OpenSCAD

Conflicts:
	README.md
	examples/make_example_pngs.sh
	examples/text_extrude.scad.png
	examples/text_on_circle.scad.png
	examples/text_on_cube.scad.png
	examples/text_on_cylinder.scad.png
	examples/text_on_font.scad.png
	examples/text_on_sphere.scad.png
	examples/text_on_surface.scad.png