From ead007d15ed8505bc96eb86cced42bbfab8789fb Mon Sep 17 00:00:00 2001
From: ljm42 <larry_meaney@iname.com>
Date: Sun, 15 May 2016 16:00:18 -0700
Subject: [PATCH] If no sensors are ignored, set $all to true

Without this, you have to ignore at least one sensor in order for the footer selections to work.