The Doxyfile now correctly reports the version as "0.0.1", and private
and static members are also now extracted, if only to make the
documentation fuller.
The README.md file is used as the index page for the generated Doxygen
documentation.
Doxygen documentation can be generated by calling `doxygen Doxyfile` in
the project's folder.
Furthermore, a Qt help file is also generated if `qhelpgenerator` is in
the path.