Added usage graph (ADSL), improved logging for usage collection (ADSL)

app/Models/AdslSupplier.php

@@ -29,7 +29,13 @@ class AdslSupplier extends Model
 
 	/** METHODS **/
 
-	public function traffic_mismatch(Carbon $date): Collection
+	/**
+	 * Return the traffic records, that were not matched to a service.
+	 *
+	 * @param Carbon $date
+	 * @return Collection
+	 */
+	public function trafficMismatch(Carbon $date): Collection
 	{
 		return AdslTraffic::where('date',$date->format('Y-m-d'))
 			->where('supplier_id',$this->id)