NTFS doesn't support chmod, so ignore chmod errors when copying files.

FUSE doesn't make it easy to detect NTFS mounts, though...
In this code we have to hardcode "fuseblk" and hope that more recent versions
of FUSE indeed show "fuseblk.ntfs-3g" instead, as a bug report suggested.

But even worse: I want to replace this code with KFileSystemType which
uses statvfs(), which is much faster and less code, but on linux that method
returns the same number (FUSE_SUPER_MAGIC, 0x65735546) for all fuse filesystems :(

Also add SMB/CIFS mounts to the list of filsystems "made by microsoft and therefore
doesn't support chown, chmod, utime, nor proper symlinks".

FIXED-IN: 4.9.1