Data conception for shurf.pl

See : http://wiki.koha-community.org/wiki/File:Kohastructure.png 2011-10-16 ------------------------------------- We work withe the Merise method to make the MCD & MPD models (Modele Conceptuel des Données and Modele Physique des Données). It defines the main generic entities. We have to work on business entities f...