Upgrade bundled markdown lib `michelf/php-markdown` to version 1.9.1 that enables PHP 8 compatibility. Also dump support for EOL PHP versions in serendipity_event_markdown, because the new version of the bundled markdown lib raises the required PHP version to PHP >=7.4.
* Get MarkdownExtra working.
It's not enough to import the right library
(Markdown or MarkdownExtra); you'll have to
call the right functions, too!
For the "classic" implementation, there's no
difference, as it seems.
Signed-off-by: Thomas Hochstein <thh@inter.net>
* Upgrade PHP Markdown Lib to 1.7.0
Former version was 1.4.0 from 2013.
Signed-off-by: Thomas Hochstein <thh@inter.net>
* serendipity_event_markdown 1.23
Update Changelog, bump version number.
Add me as author.
Signed-off-by: Thomas Hochstein <thh@inter.net>
