Traditional Chinese language update

update the url to the latest one used in the manager
FIX for FS#2463 <https://bugs.dokuwiki.org/index.php?do=details&task_id=2463>

fixed quicksearch overlay being cut off in IE7 (FS#2581)

made tabs RTL-aware

GeSHi upgraded to version 1.0.8.11

Korean language update

Finish language update

Dutch language update

Korean language update

Czech language update

removed data dir security check as suggested in FS#2547

do not intialize media manager JS if not needed FS#2578

replace deprecated split calls FS#2583

don't call set_magic_quotes_runtime if it doesn't exists FS#2583

this function was removed in PHP 5.4.0

Always disable compression when sitemaps are delivered

The class loader isn't available at that place in inc/init.php so the
check if the sitemap is compressed didn't work.

Remove unused/directly overwritten variable declarations in inc/html.php

Fix/add some PHPDoc comments in inc/html.php

Prevent access to undefined variables and make returns consistent in html.php

Allow the $check parameter of sectionID to be false

Declare timestamp parameter of http_conditionalRequest as int

Fix types in inc/changelog.php and initialize variables

Document $text parameters of html and php in the xhtml parser

Prevent access to undefined $auth variable

Add PHPDoc comments, type hints and ignore return value of act_sitemap()

Fix return types and result value handling in Sitemapper.php