add final-print.pdf to make clean
add nav and snm to make clean
move notes of presentations out of master

Only the slides of the final presentation is left in master. Notes are
preserved in a separate notes branch.
update bibliography (code reference)
various improvements to the report

Most notably, {z_1, z_2, z_3, z_4} has been renamed to {z_0, z_1, z_2,
z_3} for consistency with the general case.