Pin to apache2 < 6.0 as 7.0 also removed attributes
Pin to apache2 < 6.0 as 7.0 also removed attributes

Signed-off-by: Lance Albertson <3161cdc7bf197e4c3a35b9cbe358c79910f27e90@osuosl.org>

schubergphilis/nagios,schubergphilis/nagios,schubergphilis/nagios