update headerinfo in module droplets
Add Missing code inside "framework/addon.precheck.php" (ticket #798).Changes inside "upgrade-script" to avoid "mysql_list_tables is deprecated" warnings (ticket #800).Add "global $admin" to the install.php of the droplets-module to avoid (variable isn't declared) warnings. (ticket #800).
Created 2.8.x branch
replaced all remaining mktime() with time(), except from third party scripts
update upgrade-script to avoid droping droplet-tables if the modul still exists. Add an upgrade-script to the droplets.
Added missing id tags and copyright notices to droplets modul
Add Droplets Modul to the project and the modificated files (index, seach and frontendfunctions)