cubicweb #707764 improve css management [rejected]

Currently the (low-level) way we do css in cw is not very manageable.

We should consider these:

http://haml.hamptoncatlin.com/docs/rdoc/classes/Sass.html

http://compass-style.org/

http://www.blueprintcss.org/

http://cthedot.de/cssutils/

see also http://xcss.antpaw.org/ and http://sandbox.pocoo.org/clevercss/ and http://lists.cubicweb.org/pipermail/cubicweb/2010-February/000206.html

prioritynormal
typeenhancement
done in3.9.0
load0.000
load left0.000
closed by<not specified>