Is Vector3 needed?

[peci1]

I've just stumbled upon the docs that say:

These issues arise only with fixed-size vectorizable Eigen types and structures having such Eigen objects as member. For other Eigen types, such as Vector3f or MatrixXd, no special care is needed when using STL containers.

Indeed, the list of vectorizable types only contains Vector2 and Vector4, not Vector3.

If I'm not missing something, it seems that the using the EigenSTL version of vector of Vector3's doesn't bring anything. I understand that removing the typedef would not be a good idea, but maybe leaving a few comments around in the readme and the .h file might save someone some hesitations.