Prevent creating/modifying accounting entries made on close periods.
The period_id and journal_id field on a account.move.line is a related so was
silently (without write call) updated so did not triggered the call to
_update_journal_check while modiying the linked account.move
Force the check in the validation of the move. As the move can not be balanced
without going through this method, this will prevent posted entries in closed
accounting period.
Fixes#1633, opw 615886
Revert edbd0df
Instead of removing the demo data (demo data is our friend), make the test more
specific, adding a date to match the rate of 1.5289 all year long.
Old demo data hardcoded the currency rate of USD to 1.5289 at the half
of the year, introducting new year red runbot.
Using assertAlmostEquals to avoid values like 32.730000000000004
Christophe Simonis