! update revision properties for all files- include/Sensio/Twig remove Version 1.13.2
Created 2.8.x branch
VersionCompare inside addon.precheck.inc.php use a new function to avoid conflicts within wrong results comparing versionnumbers/-strings.Also remove PHP-Code inside "calender-system.css" (line 36) .
fixed path in jscalendar-css
added new module-based search-function and publish-by-date code