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

# By Yannick Lagger (3) and Francois-Xavier Aeberhard (2)
# Via Francois-Xavier Aeberhard (3) and Yannick Lagger (3)
* 'master' of github.com:Heigvd/Wegas:
  Fix #447
  Fix pages header title
  Token random generation letter
  GameAccountKey generation
  start refactor gameKey