Fix binkp remote closing connection, add/delete session details, menu item this system, minor CSS fixes, move system form editing to individual files

app/Models/Address.php

@@ -26,6 +26,12 @@ class Address extends Model
 
 	/* RELATIONS */
 
+	/**
+	 * Find children dependant on this record
+	 *
+	 * @todo While this is finding children of hubs, we are not currently finding children of Hosts or Regions.
+	 * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
+	 */
 	public function children()
 	{
 		return $this->belongsTo(self::class,'id','hub_id');
@@ -162,7 +168,7 @@ class Address extends Model
 		static $session = NULL;
 
 		if (is_null($session)) {
-			$session = (new AddressZone)
+			$session = (new SystemZone)
 				->where('zone_id',$this->zone_id)
 				->where('system_id',$this->system_id)
 				->single();