Are there any objections to me merging the /tw/ localizations from trunk
into the v2.9 branch?

Further to this, it appears that the translator also worked on
mediafolder/prog_tutorial, creating mediafolder/prog_tutorial_tw (this
is the only localization of this material). Assuming we merge this as
well, is this the naming convention we want to use for these, or would:

mediafolder/prog_tutorial/xx/

be better? I would do the rename after the merge, leaving the existing
trunk unsullied.