PHP warnings in videobox library

[cyprianno]

Two types of Notice (almost warning ;) raised while running videobox library with debug on: <b>Notice</b>: Constant DS already defined in <b>/var/www/libraries/videobox/videobox.php</b> on line <b>25</b><br /> <br /> <b>Notice</b>: Undefined index: color in <b>/var/www/libraries/videobox/videobox.php</b> on line <b>75</b><br /> <br /> <b>Notice</b>: Undefined index: tColor in <b>/var/www/libraries/videobox/videobox.php</b> on line <b>75</b><br /> <br /> <b>Notice</b>: Undefined index: hColor in <b>/var/www/libraries/videobox/videobox.php</b> on line <b>75</b><br /> <br /> <b>Notice</b>: Undefined index: bgColor in <b>/var/www/libraries/videobox/videobox.php</b> on line <b>75</b><br />

[cyprianno]

@HitkoDev can You merge PR for this issue?