Various teaching-related LaTeX files, including several independent LaTeX repositories as subtrees

latest commit 0c1f2e1803 Nigel Stanger authored on 17 Nov 2016
	beamerthemeOtago	Squashed 'beamerthemes/' changes from eb14121..2d36aa0	8 years ago
	beamerthemenzcs	Squashed 'beamerthemes/' content from commit eb14121	8 years ago