Changed the cache initialisation: it does not use the list of files with an md5 (due to redundancy and time consumption) but the flavour and the type (previously removed).

Use the flavour system to create individual css files. Only the default flavour (style / style.ini) will have the default styles for interwiki and filetypes. There are two new events:

 1. CSS_STYLES_INCLUDED to modify the list of stylesheet files for a certain mediatype or prevent the mediatype or styles within it. This event is fired for the interwiki and filetypes too, to prevent that they are included
    * The Data that is being sent to the event contains: list of files or the keyword DW_DEFAULT for the interwiki / filetypes; the mediatype, the flavour, if the data should be encapsulated by a default @media and the encapsualation prefix (e.g. @media screen)
 2. CSS_CACHE_USE to prevent the use of a cached version of the CSS, just like the JS event that already exists.

Add flavours to template ini files. The template will now be checked for multiple ini files and inserts them as a custom flavours. The css.php can detect these flavours and reads the stylesheet + replacements from there. If the flavour is not the default one (style.ini), replacements are loaded from the default flavour first to ensure that the colours are available. Flavours can define their own set of replacements.

Remove type and caching mechanism. The cache will be checked later and the type will be replaced by an md5 hash of the list of style files.

When an svg has a fill attribute directly on the path, we need more
specifity to override it.

Translation update (no)

ran svgo over all the admin svg files to strip all unneeded cruft.

Translation update (ja)

Translation update (zh)

similar to what is possible for plugins, templates can now autoload
namespaced classes, too. the namespace is
dokuwiki\template\<templatename>

This makes it more flexible to use on the expense of needing one echo
more.

$pagelog->getRevisions(-1, 1) cannot be passed to array_pop() as the
parameter $array expects a reference.

remove fullpath() call in pageinfo

 added rev number to most recent link in old revisions page

All script tags are now surrounded by conditional comments to tell
Internet Explorer 8 and lower to not even bother trying to load the
JavaScript.

* jqsplit:
  Restore smoothness.css using update.sh
  allow selecting the preferred CDN and add event
  load jquery via https always
  split off jquery from other JS and add CDN option #1766
  use external version file for jquery updates
  removed jQuery.browser calls
  replace deprecated bind() calls
  replace deprecated delegate() calls
  fixed radio options in media manager for new jQ-UI
  jQuery Updates

fix problems with header that look falsy. fixes #1770

Handle delayed writes gracefully

updated SimplePie and moved to composer based install. #1800

Admin Page refactoring

* use inline-block instead of flexbox
* fix RTL alignments

This reverts commit b8b60fdb.

The images are now to be seen as deprecated but will remain for a little
longer. They will be released in the future.

now comments and line breaks between tags are removed

Fix broken JS in xhtml

Add height: auto to video element css