config: prepare for FOSDEM 2014
news: remove 2013 news items
interviews: remove 2013 interviews
certification: empty for 2014
keysigning: prepare for 2014
assets: add 2014 logos
sponsors: disable sponsors
sponsors: remove flumotion too
stands: clear for 2014
schedule: make less silly, remove 2013 reference
schedule: reap another 2013 reference