[eigen] DontAlign for Quaternion and Transform

[Jakob Schwendner <jakob.schwendner@xxxxxxx>]

Hi,

in july 2010 there was a discussion on this mailing-list:
http://listengine.tuxfamily.org/lists.tuxfamily.org/eigen/2010/07/msg00359.html

As part of this thread, Christoph submitted a patch implementing 
DontAlign for Quaternion.
However, I was unable to find the patch anywhere in the repo. Was there 
a reason, this was not added?
We would also like to have this feature, and I agree, it should also be 
added to Transform.

cheers,

Jakob