[FIX] fixed warnings in runbot
[FIX] purchase_requisition: error in report printing
[FIX] stock: fixed wrong datetime format when push rule applies. Fixed also the setting to 'available' of the next pushed move when setting a move to 'done'
[FIX] purchase: fixing a warning in runbot (email_recipients fields doesn't exist anymore)
[FIX] stock_dropshipping: errors/warning in yaml test
[FIX] product_extended: fixed warnings
[FIX] product_extended: fixed warnings