This was easier than I expected - just add an optional buttons="1"
attribute to cutscenes.xml. It's treated like the speaker attribute -
it's only there as context for the translator, and for the cutscene
test.
Due to rebasing messiness and diff noise, it's probably best if pull
requests either don't sync all the language files at all (and only
modify the English ones) OR only do it as a final commit. It's still
something we need to figure out, lol.
Did another complete proofread of all the non-roomnames (hadn't looked
through *everything* in a while), and it's just three little things
that I felt would be important enough to tweak.
