Upgrade the Geekdocs theme from 0.32.4 to 0.44.1. This changes the layout
a little bit; most notably the 'documentation' menu is in a larger font.
I tried the upgrade to solve an issue of images not appearing (while
writing not-yet-committed changes). That wasn't solved by the upgrade, but
in the spirit of keeping up to date I'd thought I'd commit this upgrade
anyway.
781aaa8282
