kalua: www/cgi-bin-status.sh: show if fetched OLSR-data is older than 120 sec
kalua: www/cgi-bin-status.sh: show colored when no internet 2/2
kalua: file: age() support for 'humanreadable_verbose' = 45min 22sec @ Fri May 9 12:00:06 CEST 2014
kalua: file: age() switch back from humanreadable_verbose to humanreadable when under 30mins