blog: when forums are not allowed on articles, don't display the .inner around the #FORMULAIRE_FORUM
Merge commit '8f24731d40b6f842262809413e28bd5893b3b8ce' into blog

* commit '8f24731d40b6f842262809413e28bd5893b3b8ce':
  blog: when forums are not allowed on articles, don't display the .inner around the #FORMULAIRE_FORUM