Impacted versions:
10.0
Steps to reproduce:
1. Create Customer Invoice and Validate
2. Make Payments on Payments screen and confirm
3. Open Manual Payments and Invocies and try to reconcile hitting CTRL-Enter for mass reconciliation

Current behavior:
Odoo server error raised with traceback
File "/home/odoo/runbot/extra/runbot/static/build/188623-10-0-347494/odoo/addons/account/models/account_move.py", line 729, in process_reconciliations
    self.process_reconciliation(datum['mv_line_ids'], datum['new_mv_line_dicts'])
TypeError: process_reconciliation() takes exactly 2 arguments (3 given)

Expected behavior:

Video/Screenshot link (optional):
![image](https://cloud.githubusercontent.com/assets/17149532/21532189/3596954a-cd4e-11e6-94fa-be2195bd9f7b.png)


addons/account/models/account_move.py
second_line_dict['debit'], second_line_dict['credit'] = second_line_dict['credit'], second_line_dict['debit']
        if 'amount_currency' in vals:
            second_line_dict['amount_currency'] = -second_line_dict['amount_currency']
        # Cr
        writeoff_move = self.env['account.move'].create({
            'journal_id': vals['journal_id'],
            'date': vals['date'],
            'state': 'draft',
            'line_ids': [(0, 0, first_line_dict), (0, 0, second_line_dict)],
        })
        writeoff_move.post()
        # Re
        return writeoff_move.line_ids.filtered(lambda r: r.account_id == self[0].account_id)
    @api.model
    def compute_full_after_batch_reconcile(self):
        """ After running the manual reconciliation wizard and making full reconciliation, we need to run this method to create
            potentially an exchange rate entry that will balance the remaining amount_residual_currency (possibly several aml).
            This ensure that all aml in the full reconciliation are reconciled (amount_residual = amount_residual_currency = 0).
        """
        total_debit = 0
        total_credit = 0
        total_amount_currency = 0
        currency = False
        aml_to_balance_currency = self.env['account.move.line']
        partial_rec_set = self.env['account.partial.reconcile']
        aml_id = False
        partial_rec_id = False
        maxdate = None
        for aml in self:
            total_debit += aml.debit