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
(self + writeoff_lines).reconcile()
        else:
            self.reconcile()
    
    # Re
    
    def _get_pair_to_reconcile(self):
        #fie
        field = self[0].account_id.currency_id and 'amount_residual_currency' or 'amount_residual'
        rounding = self[0].company_id.currency_id.rounding
        if self[0].currency_id and all([x.amount_currency and x.currency_id == self[0].currency_id for x in self]):
            #or 
            field = 'amount_residual_currency'
            rounding = self[0].currency_id.rounding
        if self._context.get('skip_full_reconcile_check') == 'amount_currency_excluded':
            field = 'amount_residual'
        elif self._context.get('skip_full_reconcile_check') == 'amount_currency_only':
            field = 'amount_residual_currency'
        #tar
        sorted_moves = sorted(self, key=lambda a: a.date)
        debit = credit = False
        for aml in sorted_moves:
            if credit and debit:
                break
            if float_compare(aml[field], 0, precision_rounding=rounding) == 1 and not debit:
                debit = aml
            elif float_compare(aml[field], 0, precision_rounding=rounding) == -1 and not credit:
                credit = aml
        return debit, credit
    def auto_reconcile_lines(self):