Version change.
First cut of a test compiles.
I have introduced TestSkewField
I have implemented AlmostEqual for Quaternion
SkewField has been correctly tested.
Factorized code Abelian and Non Abelian.
Use R3x3Matrix in transforms.
Use Rotations in Transforms.
New way of applying an affine map.
Another affine map.
Velocity map.
Typed computation of the rotation.
Readying.
Lint.
After egg's review.
Merge pull request #318 from pleroy/Rotations

Reimplement Transforms to use all the goodies related to R3x3Matrix and friends
Remove default parameter.
Fix a few tests.
Changed geometry tests.
Stash.