use only language code, no language name

Support Web Video Text Tracks Format subtitles

Replace htmlspecialchars to hsc in core

replace deprecated create_function with anonymous functions

Fixes issue #1864

Added file-in-use reference to media-manager

Added a reference to the media-manager where you can see on which pages the file is used.

This change contains the same code as in #321 but for the me

Added file-in-use reference to media-manager

Added a reference to the media-manager where you can see on which pages the file is used.

This change contains the same code as in #321 but for the media-manager.

It was proposed in https://forum.dokuwiki.org/thread/13784

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Store change of filesizes in revision log

Implements
https://bugs.dokuwiki.org/index.php?do=details&task_id=2525

Delete unused div (Fixes #1098)

Remove error supression for file_exists()

In an older version of PHP a file_exists() call would issue a warning
when the file did not exist. This was fixed in later PHP releases. Since
we require PH

Remove error supression for file_exists()

In an older version of PHP a file_exists() call would issue a warning
when the file did not exist. This was fixed in later PHP releases. Since
we require PHP 5.3 now, there's no need to supress any error here
anymore. This might even give a minor performance boost.

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Some PHPDocs media and admin plugin

Merge remote-tracking branch 'origin/master' into scrutinizerissues

Conflicts:
inc/media.php
inc/plugin.php
inc/template.php
lib/plugins/authplain/_test/escaping.test.php
lib/plugins/syntax.php

Many PHPDocs, some unused and dyn declared vars

many PHPDocs
some unused variables
some dynamically declared variables declared

more scrutinizer issue improvements

scrutinizer documentations issues

improve some scrutinizer issues

different types
unused vars
PHPDocs

better NS check in media_delete

as discussed in 22db8df7a2f043e38437a49bb327354b2a296bf0

recheck auth in media_delete

Sometime the passed AUTH was not correct. This is a quick fix,
but the whole media manager handling is one stining pile of crap that
needs a major rewrite.

Move colon from code to language strings

fixed media icons in recent changes. closes #625

Merge branch 'master' into diff_navigation

* master: (103 commits)
Add a basic test case for the cache
Events: Trigger a warning if the default action is not callable
Fix caching (make the eve

Merge branch 'master' into diff_navigation

* master: (103 commits)
Add a basic test case for the cache
Events: Trigger a warning if the default action is not callable
Fix caching (make the event callback public again)
translation update
translation update
translation update
translation update
translation update
translation update
translation update
avoid HTTP image screenshot urls. closes #595
translation update
Extension manager: Fix cache extension to be .repo
adjusted the office type color again
another instance of empty() where an array key might not exist
remove placeholder van denied.txt
updated file icons once more
removed 'not logged in' text, loginform is shown already
Revert "added stripped bit to language file"
fixed index file
...

Conflicts:
inc/html.php

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Merge pull request #554 from splitbrain/fileicons

Switched file icons against generated ones, added 32x32 versions

use empty() where array values might not be set

Merge remote-tracking branch 'origin/master' into diff_navigation

Conflicts:
inc/html.php

Merge pull request #561 from splitbrain/dir_delete

replace dir_delete by io_rmdir

added some PHPDocs media.php