This reverts commit fa128ff7.

This is only cosmetics.

Hard links are only used for the initial clone.
On next runs, the working copies diverge and this wastes space on disk.

erp5_officejs_afs_directory: clean up page layout, provide fallback images integrate wikipedia content

To make sure request is different and reports do not affect
one another

so that we check that at_date in OrderModule_activateGetOrderStatList
works as inclusive