more fixes, add some defaults

blonk.sh

@@ -46,15 +46,10 @@ read_config(){
 
 	BATTERY_SHUT_VALUE=
 	BATTERY_WARN_VALUE=
-	BATTERY_WARN_GPIO=
 	BATTERY_WARN_GPIO_VALUE=0
 
 	TEMPERATURE_SHUT_VALUE=
-	TEMPERATURE_WARN_VALUE=
-	TEMPERATURE_WARN_GPIO=
-	TEMPERATURE_WARN_GPIO_VALUE=0
-
-	BLINK_ENABLED=
+	TEMPERATURE_WARN_VALUE=50
 
 	if [ -f /usr/local/etc/blonk.cfg ]; then :
 		source /usr/local/etc/blonk.cfg
@@ -344,6 +339,5 @@ echo
 				compile_warnings
 				#handle_warnings
 				sleep "$SENSOR_READ_FREQUENCY"
-			fi
 		done
 	fi