[FIX]Fixed the issue of mimetype not detected properly, used python mimetypes module to detect file's mimitype.
Launchpad automatic translations update.
[FIX] stock: destination location should not be limited to internal as this wizard is also used for incoming and outgoing pickings (opw 606213)
[MERGE] [FIX] mail: make the detection of Content-Type based on filename instead of only offering 'application/octet-stream'. This allows to have a better detection of the software to use by the browser. opw 606233
[FIX] stock: recompute the qty_available based on the location instead of using the one in the result of the browse (opw 606423)

The qty_available field is a function field that uses the information of the context (eg: location) to compute the value. Using the global browse record would return the same qty_available value for each location (and then produce way too many account.move)
[FIX] stock: when delivering a product in average cost, make sure the price_unit on the stock.move is up to date (opw 607272)
Launchpad automatic translations update.
[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