Minor: add forgotten semicolon on line end
Fixes to roboticon.js

- Change order of transformations to eyebrow animation matrix
    First transform, then rotate to avoid any problems a shifted
    coordinate system may pose -> does not yet solve issue of
    changing eyebrow positions after applying same animation
    mutliple times
- Handle zeros correctly
    Since JS treats 0 as falsy, special checks are needed
    to ensure that zero can be used as a valid valid parameter.
Rename method __faceValues__ > __getInternalFace__