Sprite exit icon
Merge branch 'master' of github.com:Heigvd/Wegas

# By Francois-Xavier Aeberhard
# Via Francois-Xavier Aeberhard
* 'master' of github.com:Heigvd/Wegas:
  Lobby - Add icon & thumbnail edition
  Remove description in entity Game
  Lobby - Add scenario edition in game right panel
  Review wegas-team.js
  Fix the mexican