make kuhl_geometry_draw() restore GLSL program after it is finished
make kuhl_geometry_draw() restore GLSL program after it is finished

JohnRThomas/opengl-examples,JohnRThomas/opengl-examples,runewake2/opengl-examples,runewake2/opengl-examples,JohnRThomas/opengl-examples,runewake2/opengl-examples,JohnRThomas/opengl-examples,runewake2/opengl-examples