Confusing Rotation docs due to mention of quaternions

[Andlon]

Some of the methods in Rotation have docs that sound somewhat copy-pasted from similar quaternion code. For example, from_basis_unchecked:

In order to get a valid unit-quaternion, the input must be an orthonormal basis, i.e., all vectors are normalized, and the are all orthogonal to each other. These invariants are not checked by this method.

Or axis_angle:

The rotation axis and angle in ]0, pi] of this unit quaternion.

Or powf:

Raise the quaternion to a given floating power, i.e., returns the rotation with the angle of self multiplied by n.

Similarly, Rotation::identity gives an example using Quaternion::identity instead of Rotation::identity! I have no idea what's going on here.