[FIX] point_of_sale: fixed errors that avoid closing a pos session + [IMP] account: added back the account_id field on statement.line obj to ease the reconciliation process when importing statements (or creating them through pos.orders). Fix #932
Merge pull request #1268 from odoo-dev/8.0-pos-fixes-qdp

[FIX] point_of_sale: fixed errors that avoid closing a pos session + [IM...
[FIX] purchase: set the commitment date as the max of scheduled dates when creating a picking from a PO, instead of leaving it at the current time (validation) which just doesn't make sense
[IMP] sale_stock Show the button 'view delivery order' as soon as a picking exists

The button should appear no matter the state of the sale order, to be consistent with the rest of the application.
This makes it much faster for the sales person to find out about orders in shipping exceptions or already processed.
Fixes #256
[FIX] sale, crm_claim, crm_helpdesk: report menus

crm claims and helpdesk reports should be in Sales Report menu, not in project
The sales report menu is now defined in sales_team, which is a common dependance between crm and sales, instead of redefining this menu in each modules