Allow dolibarr to write custom path

doli

@@ -134,6 +134,7 @@ case $action in
 		$cmd chown -R $(id -u):33 $document_path
 		$cmd chmod -R g+w $document_path
 		$cmd chmod -R g-w dolibarr/htdocs
+		$cmd chmod -R g+w dolibarr/htdocs/custom
 		$cmd touch $document_path/install.lock
 		;;
     "restart")