* remove ApparelFabricColourVariation property sheet from Apparel Fabric Colour Variation portal_type because the only property variation_base_category can now be defined using preferences.
* add some init scripts to set up the variation_base_category

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@31031 20353a03-c40f-0410-a6d1-a30d3c3de9de