[FIX] stock: when delivering a product in average cost, make sure the price_unit on the stock.move is up to date (opw 607272)
[FIX] mail: avoid catching (transient) MemoryErrors when sending outgoing mail

This would permanently mark the mail as failed while
there is a good chance it will be sent properly next
time it is retried (provided the memory situation
improves or the server/worker has restarted).
[FIX] stock: when delivering a product in average cost, make sure the price_unit on the stock.move is up to date (opw 607272)

The price mentioned on the stock move from the delivery order is the one at the time of the sale order confirmation. On average price, the price can be different when the delivery is actually done. The price will then be refreshed with the one specified on the product.
[FIX] sign in and sign out were broken in rev 10019 as it doesn't provide a date to conversion of attendance time to employee timezone
[MERGE] [FIX] hr_timesheet_sheet: set default date to now when computing date in user's timezone, courtesy of Yannick Vaucher (Camptocamp)

eg: the sign-in/sign-out button on the employee do not provide date yet (value defined in _defaults) and it would broke the computation