Adjusted webcamDaemon for OctoPi that does not hang

webcamDaemon

#!/bin/bash

vcgencmd version
while true; do
    if [ "`vcgencmd get_camera`" = "supported=1 detected=1" ]; then
        logger "Starting webcam"
        pushd /home/pi/mjpg-streamer-experimental
        LD_LIBRARY_PATH=. ./mjpg_streamer -o "output_http.so -w ./www" -i "input_raspicam.so -d 100"
        popd
    fi

    sleep 120
done