added 'show_gaps' support to the 'fail2ban' graph
added 'show_gaps' support to the 'icecast' graph
added 'show_gaps' support to the 'raspberrypi' graph
added 'show_gaps' support to the 'wowza' graph
added 'show_gaps' support to the 'int' graph
added 'show_gaps' support to the 'traffacct' graph
update Changes