add fossdem. add endsAt prop to talks objects to automatically filter talks that have already occured
added talk of sebastien arbogast on lean startups
add endsAt and meetup ID to arbogast's event. Backup of the 2013's talks into a separate json file
add endsAt and meetup ID to arbogast's event. Backup of the 2013's talks into a separate json file
Merge branch 'd4k'

Conflicts:
	assets/js/controllers.js
more trainers
changed color of registration lightbox
show sponsors all on 1 line
added more trainers (tdemande)
oops, missing image of newly added trainer
added logo of ISL as sponsor
added contact info on d4k page
added address for next talk (lean startup at ulg)
fix #8