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
balance_cash_basis = fields.Monetary(compute='_compute_cash_basis', store=True, currency_field='company_currency_id',
        help="Technical field holding the debit_cash_basis - credit_cash_basis in order to open meaningful graph views from reports")
    amount_currency = fields.Monetary(default=0.0, help="The amount expressed in an optional other currency if it is a multi-currency entry.")
    company_currency_id = fields.Many2one('res.currency', related='company_id.currency_id', string="Company Currency", readonly=True,
        help='Utility field to express amount currency', store=True)
    currency_id = fields.Many2one('res.currency', string='Currency', default=_get_currency,
        help="The optional other currency if it is a multi-currency entry.")
    amount_residual = fields.Monetary(compute='_amount_residual', string='Residual Amount', store=True, currency_field='company_currency_id',
        help="The residual amount on a journal item expressed in the company currency.")
    amount_residual_currency = fields.Monetary(compute='_amount_residual', string='Residual Amount in Currency', store=True,
        help="The residual amount on a journal item expressed in its currency (possibly not the company currency).")
    account_id = fields.Many2one('account.account', string='Account', required=True, index=True,
        ondelete="cascade", domain=[('deprecated', '=', False)], default=lambda self: self._context.get('account_id', False))
    move_id = fields.Many2one('account.move', string='Journal Entry', ondelete="cascade",
        help="The move of this entry line.", index=True, required=True, auto_join=True)
    narration = fields.Text(related='move_id.narration', string='Narration')
    ref = fields.Char(related='move_id.ref', string='Reference', store=True, copy=False, index=True)
    payment_id = fields.Many2one('account.payment', string="Originator Payment", help="Payment that created this entry")
    statement_id = fields.Many2one('account.bank.statement', string='Statement',
        help="The bank statement used for bank reconciliation", index=True, copy=False)
    reconciled = fields.Boolean(compute='_amount_residual', store=True)
    full_reconcile_id = fields.Many2one('account.full.reconcile', string="Matching Number", copy=False)
    matched_debit_ids = fields.One2many('account.partial.reconcile', 'credit_move_id', String='Matched Debits',
        help='Debit journal items that are matched with this journal item.')
    matched_credit_ids = fields.One2many('account.partial.reconcile', 'debit_move_id', String='Matched Credits',
        help='Credit journal items that are matched with this journal item.')
    journal_id = fields.Many2one('account.journal', related='move_id.journal_id', string='Journal',
        index=True, store=True, copy=False)  
    blocked = fields.Boolean(string='No Follow-up', default=False,
        help="You can check this box to mark this journal item as a litigation with the associated partner")