Adds a new template variable $xf.reply.templateParent which groups all thread_view* and forum_view* templates together.
XenForo 2.2 adds multiple variations to the thread_view and forum_view templates for the various new thread types:
thread_view_type_article
thread_view_type_poll
thread_view_type_question
thread_view_type_suggestion
forum_view_type_article
forum_view_type_question
forum_view_type_suggestion
So now when you want to target a template conditional to a thread view page...
