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
for move in self:
            lock_date = max(move.company_id.period_lock_date, move.company_id.fiscalyear_lock_date)
            if self.user_has_groups('account.group_account_manager'):
                lock_date = move.company_id.fiscalyear_lock_date
            if move.date <= lock_date:
                if self.user_has_groups('account.group_account_manager'):
                    message = _("You cannot add/modify entries prior to and inclusive of the lock date %s") % (lock_date)
                else:
                    message = _("You cannot add/modify entries prior to and inclusive of the lock date %s. Check the company settings or ask someone with the 'Adviser' role") % (lock_date)
                raise UserError(message)
        return True
    @api.multi
    def assert_balanced(self):
        if not self.ids:
            return True
        prec = self.env['decimal.precision'].precision_get('Account')
        self._cr.execute("""\
            SELECT      move_id
            FROM        account_move_line
            WHERE       move_id in %s
            GROUP BY    move_id
            HAVING      abs(sum(debit) - sum(credit)) > %s
            """, (tuple(self.ids), 10 ** (-max(5, prec))))
        if len(self._cr.fetchall()) != 0:
            raise UserError(_("Cannot create unbalanced journal entry."))
        return True
    @api.multi
    def _reverse_move(self, date=None, journal_id=None):