Recalculate tax lines after the delivery is solved. This way, if user solved divergence using inconsistent decisions (ie. decisions that would make the tax line applied on wrong values), then the delivery will remain diverged until divergences are solved in a consistent way.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@25604 20353a03-c40f-0410-a6d1-a30d3c3de9de