revert storing traffic in bytes as webalizer/awstats store in KB so goaccess needs to do that as well in order to stay consinstent throughout the system

Signed-off-by: Michael Kaufmann <d00p@froxlor.org>

lib/Froxlor/Cron/Traffic/TrafficCron.php

@@ -682,6 +682,7 @@ class TrafficCron extends FroxlorCron
 					$returnval = ($returnval - floatval($result['trafficmonth']));
 				}
 			}
+			$returnval = floatval($returnval / 1024);
 		}
 		return $returnval;
 	}