Fix for Issue #2079 (change cursor position if media manager is in 'keep open' mode)

refactor Ajax functions into a class

This doesn't really do much except wrapping the functions into a
namespaced class. Autoloading takes care of loading the file.
It's now possible to call lib/exe/

refactor Ajax functions into a class

This doesn't really do much except wrapping the functions into a
namespaced class. Autoloading takes care of loading the file.
It's now possible to call lib/exe/ajax.php multiple times in a test
request.

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translation update

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translation update

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fix: correctly show conflicts in extension manager

fix: check if key is set to fix PHP Notice

If a key is not set, a PHP Notice is triggered. While these are
currently suppressed, this is still a code smell.

translation update

slightly adjusted the icon sizes

This looks a bit better and is closer to the original, even though the
sizes are a bit weird now.

readd significant space

this got lost in a previous update

fix(config): empty string is valid for numericopt

There was a bug that the empty string was considered to be invalid if
also a max or min value was defined for a config field of type
numericopt.

do not create unecessary references for single use objects

Removed progressbar from searchform

translation update

Make default encapsulation more readable and less duplicate.

Replace htmlspecialchars to hsc in core

Add the preview-bool for the cache file.

#2021 broken links to W3C validators
also dokuwiki and php are on https

extracted functions
added test coverage

Fix PHP Notices: Reduce error log noise

While DokuWiki suppresses PHP Notices they are still a code smell and
should be fixed. This fixes some PHP Notices that occurred.

Some of these fixes could b

Fix PHP Notices: Reduce error log noise

While DokuWiki suppresses PHP Notices they are still a code smell and
should be fixed. This fixes some PHP Notices that occurred.

Some of these fixes could be refactored into nicer code once we move to
PHP 7 and get access to the `??` operator.

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allow tests against ajax requests

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clean extension names. fixes #2042

This makes sure the provided extension ID is a valid id before
initializing it in the extension manager.