translation update
use $auth instanceof AuthPlugin instead of not null check
Rector to rename print to echo calls
code style: ptln removed, useradmin cleanup
coding style: control flow line breaks
coding style: control flow whitespaces
update some plugin classes in phpdocs, reformatting
recover comments in list
codestyle adjustments: function declaration braces/spaces
Apply rector renames
Apply remaining rector fixes to lib
Apply rector fixes to the rest of lib/plugin
add needed type hints for phpunit8This will break a lot of plugin tests, but can't be avoided
usermanager CLI: more cleanup
usermanager CLI: use success messagesThis makes it more consistent with the other tools
usermanager CLI: fix parameter order for creating users
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