- The "eye_unimpressed" morph had just one key in the emotion JSON, although the
model has two morphs (left and right) for this. Now it has two, as it should.
- This change breaks backward compatibility for old emotion JSON files.
- OTOH, not much of an issue, because in all versions prior to this one
being developed, the emotion JSON system was underutilized (only a bunch
of pre-made presets, only used internally by the live plugin).
- Thus it is important to fix this now, before the next release, because the
improved manual poser makes it easy to generate new emotion JSON files,
so from the next release on we can assume those to exist in the wild.