vals=vals_line on a create function

Come on !!!!   

timesheet_obj.create(cr, uid, vals=vals_line, context=context)
timesheet_obj.create(cr, uid, vals_line, context=context)
Merge pull request #639 from tfossoul/patch-2

Record values should not be passed by keyword to "Model.create": there
is no requirement or guarantee that overriding methods call the
parameter "vals".