/who/people: add Mike Perry and Seth Schoen, thank you for...

/who/people: add Mike Perry and Seth Schoen, thank you for https://media.ccc.de/v/31c3_-_6240_-_en_-_saal_g_-_201412271400_-_reproducible_builds_-_mike_perry_-_seth_schoen_-_hans_steiner



Signed-off-by: Holger Levsen <holger@layer-acht.org>