servers temporarily

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no issues, no changes

[       ] mkalkbrenner: added more comments

3. Add information on Cron Control admin page to run cron if cron control table is empty.
4. add a warning on admin page if at least on cron job isn't activated on any server

[] mkalkbrenner: fixed saving configuration

Fatal error: Call to undefined function cron_control_adjust_module_weight() in cron_control/cron_control.install on line 17