- point to main Calamares site in the 'part of' headers instead
of to github (this is the "this file is part of Calamares"
opening line for most files).
- remove boilerplate from all source files, CMake modules and completions,
this is the 3-paragraph summary of the GPL-3.0-or-later, which has
a meaning entirely covered by the SPDX tag.
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
