- modules with no configuration should be marked 'noconfig',
but umount is special: it has no **useful** configuration
(maybe no **non-deprecated** configuration), but isn't
marked 'noconfig' **yet**.
In spite of there being considerable documentation sometimes in the
config file, we go with CC0 because we don't want the notion of
'derived work' of a config file.
The example `settings.conf` is also CC0. Add some docs to
it while we're at it.
instead of having to hope users save an installation log before leaving live mode,
this commit gives distributions the option to have a full calamares -d log available on
the newly installed system
see the readme.md for details
this is fully tested and working properly, using the example launcher script & .desktop line
as noted in the readme
