Adjust license appropriately, to acknowledge SMF derivative and past copyrights.
Add history details to README.

Signed-off-by: Norv <a.w.norv@gmail.com>
Fix license in the files to acknowledge contributors copyrights.

Signed-off-by: Norv <a.w.norv@gmail.com>
Add authors file.

Signed-off-by: Norv <a.w.norv@gmail.com>