* Add Apparel Colour Range Variation Line portal_type which is used to sort specialise values (it was not possible to sort using a relation_string_field because it's frequent to have many many items with same title, so it's impossible to chose in the proposed listfield that appear if you change the order of the relation string field).

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@31078 20353a03-c40f-0410-a6d1-a30d3c3de9de