make undefined settings output work again

removed fixme that had been fixed

clean settings data

removed constructor parameters we never use

pass correct array in event

readd PLUGIN_CONFIG_PLUGINLIST event

do not drop undefined settings when saving the configuration

fix numericopt setting

In 55a4f137738ef5718cc047e5fb802e1c6d0a409f a bug was introduced that

* forced resaving the config even if it hadn't changed
* prevented setting the value to an empty string

fix numericopt setting

In 55a4f137738ef5718cc047e5fb802e1c6d0a409f a bug was introduced that

* forced resaving the config even if it hadn't changed
* prevented setting the value to an empty string once set

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improve update() comments

make abstract test abstract again

fixed updateSettings iteration

make the onoff setting more boolean

We now parse true and false as well as some common strings

some more testing

fix language and TOC handling

Fixed some bugs in the Loader and added tests

fix: throw RemoteAccessDeniedException if not admin

feat(RemoteAPI): Add call to delete Users to the remote API ✨

Make lexer/state stack more understandable
- rename lexer $mode property to avoid two different uses of "mode"
variables in the lexer
- clarify/improve comments

fix: workaround premature metadata generation on page save ��

This fixes a bug where the creator of a new page was not saved to metadata.
That could happen if a plugin calls pageinfo() in the IO_WIK

fix: workaround premature metadata generation on page save ��

This fixes a bug where the creator of a new page was not saved to metadata.
That could happen if a plugin calls pageinfo() in the IO_WIKIPAGE_WRITE
event AFTER handler. This creates a new .meta file for the page with the
page's mtime as the creation timestamp. That caused the if clause
changed in this commit to evaluate as false and thus the creator key was
not saved.

This commit now also treats the page as newly created if the created
date in the metadata to the file's current mtime.

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removed obsolete language files

These shouldn't be there anymore since the plugins have been deleted

some more tests on the output mechanism

Some first Setting class tests

proper defaults for initialize

There isn't really unset variables, but we do expect null to be passed
for some of them.

This also moves the update method further up as it's logically the next
step.

extract save checking into own method

Instead of having the out() method return empty strings, a new method
tells the writer if a setting should be saved or not. Only then the
out() method is called.

Also allow test files ending in Test.php

This makes it possible to give test files proper PSR-2 names where the
file is named after the class name.