Merge origin/master
Update of README.md
Merge branch 'fantin5' of https://bitbucket.org/adrientoub/nuit-de-linfo-2014
Inscription, connection, design, forms, sessions manipulation, etc
Our action descrioption, stats removing and header modified.
Merge origin/master
Merge branch 'fantin6' of https://bitbucket.org/adrientoub/nuit-de-linfo-2014