Some documentation updates

Update OS/2 changelog

Merge https://github.com/textbrowser/dooble

Update OS/2 specific documentation

Merge branch 'master' of https://github.com/dryeo/dooble

Merge branch 'textbrowser:master' into master

Another merge fix

needed to not write the settings to the root of the drive where Dooble is launched

really fix merge

really fix merge

Merge https://github.com/textbrowser/dooble