Add basic cmake instructions in an INSTALL file.
Rework of the README file as well as the help page.
The knetstats.desktop file has been moved to the "src" folder.
Signed-off-by: gregory guy <firstname.lastname@example.org>
Signed-off-by: Slávek Banko <email@example.com>
Signed-off-by: Fabio Rossi <firstname.lastname@example.org>
Signed-off-by: gregory guy <email@example.com>