Update copyright year

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@15366 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_project/bt/copyright_list

-Copyright (c) 2005-2006 Nexedi SARL
+Copyright (c) 2005-2007 Nexedi SA
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bt5/erp5_project/bt/revision

-269
+270
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