Merge branch 'master' of http://isgb.otago.ac.nz:8080/git/mark.george/templates

Minor tweaks.

Moved things around a bit. Improved pantuml styles.

Fixed up README.

Modified section headings (removed bold), and adjusted vspace for nest env.

Added \exercise{} command which has its own counter.

Added my first go at a flat nested list environment

Added some initial plantuml templates for lectures

Reworked sections style. Other minor tweaks.

Massive cleanup. Changed fonts to libertine, and added todonotes.

Minor changes.

First attempt to match Tobias' style.

Added more to content.tex for testing with.

Improved code highlighting.

Modernised labs template.

Existing templates.