2.0.0:
------
 * Declare strict types
 * Re-/Move UTF-8 lang file to plugin root for Styx 5.0
 * Use native htmlspecialchars()
 * Raise requirements for Styx 5.0

1.5:
-----
 * Check REQUEST object
 * Set plugin consistencies
 * Use load language API - extends required Serendipity version to v.1.6

1.4: Compatibility and specialchars fixes

Version 1.3 (brockhaus)
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    * Added "geo.url" meta attribute.