Seems to have stopped working. Haven't looked into why.
In new setup, it seems to need the yas-reload-all call in order to see
my snippets right away. Again, haven't looked into it.
vc isn't necessarily loaded even when vc-hooks (where vc-follow-symlinks
is located) is. Setting this variable in :config seemed to work before,
so I think there must have been a recent change in Emacs.