Add Flexi response plugin on Text
Merge branch 'master' of github.com:Heigvd/Wegas

# By Yannick Lagger
# Via Yannick Lagger
* 'master' of github.com:Heigvd/Wegas:
  Fix #460 and Fix #461 Checks to join a game
  Fix #462 AccountKey popup change label