Merge branch 'doc' into 'master'
Doc - improve user's doc style - add some explanation about the code structure in the main doxygen - fix coverage in analysis sonarqube - add a release job to automatize release publication - change the cdash server to my.cdash.org which is more recent and reactive than cdash.inria.fr - fix the version number, dates and authors in headers to prepare the release 0.9.2 See merge request solverstack/chameleon!147