Tweaks to handout spacing, presentation mode titles, and syllabi footers
Added 'detect-all' option to siunitx.sty
Merge branch 'master' into For-GitHub
Added 'detect-all' option to siunitx.sty
Tweaks to handout spacing, presentation mode titles, and syllabi footers

Signed-off-by: Thomas Hodgson <thomas.hodgson@gmail.com>