* Movement Group becomes ERP5 Document. See http://www.erp5.org/HowToConfigureBuilder for the detail.
* add _duplicate() in CopySupport.py. This method is similar to copy and paste, but it preserves workflow history.
* add a new target solver CopyAndPropagate.py that updates values according to passed divergence list and propagate them.


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@23647 20353a03-c40f-0410-a6d1-a30d3c3de9de