Invoice date is start_date, not creation_date

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@23693 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_invoicing/SkinTemplateItem/portal_skins/erp5_invoicing/Invoice_viewAsODT.xml

@@ -360,7 +360,7 @@ AAA=</string> </value>
                           </table:table-cell>\n
                           <table:table-cell table:style-name=\'Tableau2.E1.2.2\' office:value-type=\'string\'>\n
                             <text:p text:style-name=\'Table_20_Contents\'\n
-                                    tal:content="data_dict/creation_date">creation date</text:p>\n
+                                    tal:content="data_dict/start_date">start date</text:p>\n
                           </table:table-cell>\n
                         </table:table-row>\n
                         <table:table-row table:style-name=\'Tableau2.E1.1\'>\n

bt5/erp5_invoicing/bt/revision

-132
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+133
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