commit e2f1b1a4f15fc01440f8137f173eb1854ffa796d
Author: Jan Dankert 
Date:   Sun Sep 9 22:31:00 2018 +0200

    Der Gültigkeitszeitraum ist jetzt für Seiten pflegbar.

 modules/cms-core/action/PageAction.class.php       | 225 +++++++++++----------
 modules/cms-core/model/BaseObject.class.php        |  34 +++-
 .../default/html/views/include/validity.inc.xml    |  27 +++
 .../cms-ui/themes/default/html/views/page/prop.php |  38 +++-
 .../default/html/views/page/prop.tpl.src.xml       |   4 +-
 modules/language/lang-cn.php                       |   3 +
 modules/language/lang-de.php                       |   3 +
 modules/language/lang-en.php                       |   3 +
 modules/language/lang-es.php                       |   3 +
 modules/language/lang-fr.php                       |   3 +
 modules/language/lang-it.php                       |   3 +
 modules/language/lang-ru.php                       |   3 +
 modules/language/language.yml                      |   9 +
 13 files changed, 245 insertions(+), 113 deletions(-)