mailmap: Christian Theune affiliation

Reviewed-by: Christian Theune <ct@gocept.com>
Signed-off-by: Loic Dachary <loic@dachary.org>
mailmap: Chris Glass affiliation

Reviewed-by: Chris Glass <tribaal@gmail.com>
Signed-off-by: Loic Dachary <loic@dachary.org>
mailmap: Aristoteles Neto affiliation

and name normalization

Reviewed-by: Aristoteles Neto <aristoteles.neto@webdrive.co.nz>
Signed-off-by: Loic Dachary <loic@dachary.org>