updated dependancies + fixed articles admin
also fixed the event addition form
fixed some mandatory / optional fields + improved admin usability
improved the blog frontend. Use the 'past' and 'future' events stuff
improved the location display - promise I am not the original author of this
added meetup icon+link + optimized images
improved the pagination and the footer
customize error pages
Display real Twitter name instead of @twitter for everyone
Merge pull request #19 from j0k3r/patch-1

Display real Twitter name instead of @twitter for everyone
fixed tag pages + feed
display the tags also in lists + improved the tags display
parameters dist
add a reset script
fix schema
skeleton for calendrier de lavent
avent - filter articles by day
avent - day page
enable Symfony Debug component
avent year page