Further updates to commentary, mostly un-ASCII-fying contributors' names.

Change attributions for contributors' names using the Latin alphabet
only where it was possible to reconstruct from mailing list records.
Leave attributions for Андрей Чернов, Иофис Герман Романович, and 李耀
宗 with their romanized versions instead (Andrey A. Chernov, German
Iofis, and Lee Yiu Chung, respectively).
* africa: A few fixes to typos and capitalization in commentary.
More spelling and accent fixes.