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.
Wrap lines to fit 80 characters
Fix spaces
Remove extra whitespaces
Remove whitespace
C'est pail qu'a raison
Merge pull request #307 from tnuvoletta/quaternion-test

Quaternion test
Merge
Fix tests after merge.