All $err type error messages in HTML are safely escaped now.
URL-encoding in links:
I have implemented urlize() in all places where user input ($in{'device'}, $in{'slice'}, $in{'part'}) was included in the URL (footer/redirect/other link), e.g. edit_slice.cgi?device=...&slice=....
Affected files include: create_part.cgi, create_slice.cgi, delete_part.cgi, delete_slice.cgi, change_slice_label.cgi, part_form.cgi, slice_form.cgi, edit_slice.cgi, edit_part.cgi, fsck.cgi, newfs.cgi, newfs_form.cgi, save_part.cgi, save_slice.cgi, save_slice_label.cgi, zfs_create.cgi, zvol_create.cgi.
