Don't double slash in Python if using raw trick...
Lighting & Poster rewording.

Baed on feedback from Nomi (co-chair). We currently do not have
any time left for more Lighnting Talks :(
Insert missing slashes for e-accents.

See also d43c2d57ac49ff1868157e4e4e918d42b5b7bf77 from Hilmar
to fix get_schedule.py
Clarify tense of sponsorhip.

Suggestion from Nomi (co-chair).
Schedule layout tweaks, note RSVP again for dinner

Based on feedback from Nomi (co-chair).
Include OBF website; Mention BOFs