function

FIX Updating an entry with menu editor did not save fk_leftmenu.

saving.

FIX Compatibility datee and date_end for warning of tasks

When ModSecurity is enabled on apache server then "scandir" is forbidden word. When changing numbering model then you will find following error in apache log: 
ModSecurity: Access denied with code 403 (phase 2). Pattern match "(?i)(?:\\\\b(?:f(?:tp_(?:nb_)?f?(?:ge|pu)t|get(?:s?s|c)|s(?:ession_start|candir)
I have changed "scandir" to "scan_dir".

FIX Can show tree of entries added by external modules using fk_mainmenu
and fk_leftmenu instead of fk_menu.

module.