Translation of the TabsMacro and related samples for the fr-FR edition.

While we are at it, propose an addendum
at the end of the TabsMacro documentation
Merge remote-tracking branch 'upstream/master' into fred
Remove dependency on overriding the core toc macro

Thanks to 5b38c21a417d2e5e2b85aed8010c88af32420e24
and a subsequent suggestion from @BramChen
Add one-character macro names for every punctuation shortcuts

Per @evolena neat suggestion: <<:>> is shorter and looks better than <<dp>>
Translation in French of the documentation tiddler Tagging
Merge remote-tracking branch 'upstream/master' into fred
Remove dependency on core timeline macro by overriding timeline-title() instead

In application of #1221
Merge pull request #1224 from xcazin/fred

Various updates to the fr-FR edition