analytic line from rules should have the date set to move date

currently, the date used when a new analytic line is created from rules is the post date of the move.

it seems wrong to me, as an accounting entry from one fiscal year could be recorded in analytic in the next fiscal year. by default, the date should be the move_line date.

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review305271002 updated at https://codereview.tryton.org/305271002/#ps325081002

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assigned to @semarie

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review305271002 updated at https://codereview.tryton.org/305271002/#ps309381002

New changeset 343fa6f62bd3 by Sebastien Marie in branch 'default':
Use line date instead of post_date when creating an analytic line from rule
https://hg.tryton.org/modules/analytic_account/rev/343fa6f62bd3

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closed

New changeset f97611fac726 by Cédric Krier in branch 'default':
Use line date instead of post_date when creating an analytic line from rule
https://hg.tryton.org/tryton-env/rev/f97611fac726