Paris 2013 - reactions, slides and upcoming videos

Here's all the slide deck I could find, along with the blog post reactions
about Paris 2013. We'll also link the video from this page when those will
be available.

Signed-off-by: brice <brice@daysofwonder.com>
Paris 2013 - Added @zepag pictures of the 1st day
Merge pull request #279 from masterzen/paris-reactions-slides

Paris 2013 - reactions, slides and upcoming videos