removed dev suggestions from composer file

Those are now specified in the _test composer file.

Replace strftime with Intl ICU. Fixes #3573

This uses a class that maps strftime placeholders to the appropriate ICU
patterns. I am using the fallback-intl branch here which provides an
English-only

Replace strftime with Intl ICU. Fixes #3573

This uses a class that maps strftime placeholders to the appropriate ICU
patterns. I am using the fallback-intl branch here which provides an
English-only fallback when the intl extension is not available.

Core has only two places where strftime is used: dformat() and the
SimplePie feed parser. Both are adjusted with this patch. For the latter
a custom Item class had to be registered. For better separation all our
FeedParser classes have been moved to the Feed namespace where our
FeedCreator classes already reside.

Note that this will currently be a degration for users without intl as
it will fall back to date and not to the still available strftime.

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replace LESS library. fixes #4088

This replaces the abandoned fork with my own fork at splitbrain/lesserphp

That fork has been cleaned up somewhat and the issues in #4088 should be
fixed.

upgrade to phpseclib 3

This replaces the dependabot PR #4114 and adjusts the usage of the
library.

increase required PHP version to 7.4

Fix recommended typo

extracted JS compressor into its own library

This moves our JavaScript compressor into its own composer dependency.

updated repo links

update to lesserphp 0.6

move IXR XML RPC to composer dependency #1970

This is a monky patched version of kissyfrot/php-ixr until my PR has
been accepted upstream.

Plugins using the XML RPC client may need adjustments.

Fix for Remove random_compat, no longer needed #3262

added Slika as dependency

increase minimum PHP version to 7.2

temporarily use geshi master #3108

GeSHi/geshi-1.0#134 has been merged but a new release tag hasn't been
assigned, yet. Since this may take a while, this patch requires the master
branch. It should

temporarily use geshi master #3108

GeSHi/geshi-1.0#134 has been merged but a new release tag hasn't been
assigned, yet. Since this may take a while, this patch requires the master
branch. It should be reverted to a proper version again once it's
available.

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dependency upgrades

All composer dependencies have been updated

Force Travis CI PHPUnit version to 7 on PHP 7.2+, fixes #2693

replace Doku_CLI with splitbrain\phpcli\CLI

It has few more features (like turning down verbosity) and looks nicer

fix platform to the minimum requirement

this ensures installed composer libraries will be compatible even when
installed from a higher version platform

Merge branch 'master' into lesserphp

* master: (70 commits)
Release preparation
translation update
do not disclose email or IP addresses of users through RSS
small fix
Make default encapsu

Merge branch 'master' into lesserphp

* master: (70 commits)
Release preparation
translation update
do not disclose email or IP addresses of users through RSS
small fix
Make default encapsulation more readable and less duplicate.
Replace htmlspecialchars to hsc in core
Add the preview-bool for the cache file.
Add htmlspecialchars when showing $DATE_AT
#2021 broken links to W3C validators also dokuwiki and php are on https
made bin/wantedpage.php more flexible
doc abbreviation
Fix PHP Notices: Reduce error log noise
Create valid empty options
translation update
doc fix
translation update
using $options->getCmd to retrieve show-pages parameter
added option to wantedpages.php to show or not show pages where broken links occur
show pages where broken links occur: page_id => broken_link
clean extension names. fixes #2042
...

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moved EmailAdressValidator to composer install #1970

use composer based library for feed creator #1970

updated GeSHi to 1.0.9.0

replace LESS compiler with lesserphp

This is a better maintained fork of lessphp. It seems to be fully
compatible, so this is more or less a drop in replacement.

increase minimum version requirement to PHP 5.6

updated SimplePie and moved to composer based install. #1800

This updates the SimplePie RSS parser to the recent 1.4.3 release,
fixing an PHP 7 bug (and probably others). We now use a composer based

updated SimplePie and moved to composer based install. #1800

This updates the SimplePie RSS parser to the recent 1.4.3 release,
fixing an PHP 7 bug (and probably others). We now use a composer based
install.

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