Added custom properties and backup settings

INSTALL

@@ -14,6 +14,7 @@ Yacht Management Software (YMS) Installation
 1.2 Native GUI
 - Python GTK3
   - python3-gi
+  - python3-pyudev
   - gir1.2-gtk-3.0
   - gir1.2-rsvg-2.0
 
@@ -77,7 +78,7 @@ group (here as example 'yms'). The user which runs the local gui (here
   usermod -aG yms guiuser
   chgrp yms /var/local/lib/yms
   chgrp yms /var/local/lib/yms/thumb
-  chmod -R 770 /var/local/yms
+  chmod -R 770 /var/local/lib/yms
 
 4. Setup local GUI