Comment 9 for bug 663925

This is a simple patch: I decided to disable 'allow_physical_directory_deletion' if it is set, and output an error message (which will be routed to the error.log file) *if* the current configuration file has 'allow_physical_directory_deletion = "yes"'.

This is minimally invasive, and I confirmed the option is reset if present in ~/.ncmpcpp/config.

I am still to look at the Lucid version.