Fixed some validiation bugs in news modul (Thanks to Luisehahne)
fixed wrong path to images in news and form modul
Copyright notices now includes 2009
added hour and minute support to default published_when field in news modul
Added missing text in languages files for jscalendar
Had to fix some strtotime()-related issues in admin/pages/sections and module news to use with PHP4.
module news: added publish_until field to control the visibility of a news-posting by date and time
adapted news-module to use the new jscalendar, removed old one
added again keywords to news modul files
Updated news modul with features from the advanced news modul