Update version number and copyright years in extension manuals.

For the version number, use the |release| substitution instead
of repeating the version number.

Resolves: #63532
Releases: master
Change-Id: I2e0e6f1ce8dd9b473f3efaf4d262c432f261ba63
Reviewed-on: http://review.typo3.org/34957


Reviewed-by: Michael Oehlhof <typo3@oehlhof.de>
Tested-by: Michael Oehlhof <typo3@oehlhof.de>
Reviewed-by: Markus Klein <klein.t3@reelworx.at>
Tested-by: Markus Klein <klein.t3@reelworx.at>