* Add `mcPlot`, the standard plotting class of Matthias Cuntz.
- It currently assumes that MyriadPro is installed for LaTeX if one
wants to typeset with latex (-u, --usetex). For installing MyriadPro
on macOS see https://github.com/mcuntz/setup_mac#myriad-pro This
should be similar on Linux.
- There are no tests for mcPlot yet.