3.0.0:
------
 * Use native htmlspecialchars()
 * Declare strict types
 * Re-/Move UTF-8 lang file to plugin root for Styx 5.0
 * Raise requirements for Styx 5.0

3.0.0 (sidebar):
------
 * Declare strict types
 * Raise requirements for Styx 5.0

2.27:
-----
 * Prepare for Serendipity Styx 4.4.0 - expandable hooked sidebar links

2.26:
-----
 * Improve backend markup indents for Serendipity Styx 4.3.0
 * Raise requirements

2.25:
-----
 * Better check for $serendipity['GET']['subpage'] on entry preview

2.24 & 2.19 (sidebar):
----------------------
 * Remove redundant title desc introspect_config_item

2.23:
------
 * Fix SQL Index generation for wrong PREFIX usage. For existing tables please manually add
    ALTER TABLE `styx_polls_options` ADD INDEX pollidx (pollid);
   or delete the polls and polls_options tables and the plugin in your Styx plugin and after all install from scratch.

2.22 & 2.18 (sidebar):
----------------------
 * SQL Preparation fixes for Styx PHP 8 debug sets and upcoming PHP 8.1 MYSQLI_REPORT_STRICT
 * PHP 8 variable initialization fixes
 * Raise requirements
 * cleanup

2.21:
------
 * PHP 8 preparation fix

2.20: & 2.17: (sidebar)
------
 * Consistency cleanups

2.19:
-----

 * Added legal property bag information for gdpr/dsgvo

2.18:
-----

 * Iconfont accessibility fixes

2.17:
----

 * Optimize URI args load

2.16:
----

 * Set Plugin consistencies
 * Use lang API - extends required version

2.15: Use static function declaration

2.14: Added additional backend markup for 2.0 backend (yellowled)

Propagate $smarty.env.staticpage_pagetitle (and the others) so that it can be used in entries.tpl