When an asset is set as Prorata Temporis, with a one month period, the
first depreciation amount is computed on the basis of the remaining days
in the purchase year. This doesn't make sense for a monthly
depreciation.
This commit makes the distinction between a monthly and a yearly
depreciation. In the case of a monthly depreciation, the remaining days
in the purchase month are taken into account.
opw-690034
Nicolas Martinelli
Raphael Collet
Turkesh Patel (Open ERP)
Mayur Maheshwari (OpenERP)