filename changed to related_key_list

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@5186 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_accounting/CatalogRelatedKeyTemplateItem/key_list.xml

-<key_list>
- <key>gap_id | category,catalog/id/z_related_gap</key>
- <key>preferred_gap_id | category,catalog/id/z_related_preferred_gap</key>
-</key_list>
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