Fix motion installation error if user "video" already exist

Add device present check to initskript
Change webcam quality to default

src/initscripts/init.d/motion

@@ -6,6 +6,12 @@
 case "$1" in
 	start)
 		boot_mesg "Starting motion webcam server..."
+		if [ ! -e /dev/video0 ]; then
+			boot_mesg "Error! No video input device found."
+			echo_failure
+			#No 3 min wait
+			exit 0;
+		fi
 		chown :video /dev/video*
 		mkdir -p /var/motion/cam1
 		chown -R video: /var/motion/cam1

src/paks/motion/install.sh

@@ -25,3 +25,5 @@
 extract_files
 restore_backup ${NAME}
 useradd -s /bin/false video
+#Ignore error if the user already exist
+exit 0