[IMP] account_cancel: clean imports, openerp tags and correct exceptions

addons/account_cancel/models/account_bank_statement.py

@@ -1,8 +1,8 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
-from openerp import models, api, _
-from openerp.exceptions import Warning
+from odoo import models, api, _
+from odoo.exceptions import UserError
 
 
 class BankStatement(models.Model):
@@ -25,5 +25,5 @@ class BankStatementLine(models.Model):
         if not self.env.context.get('bank_statement_cancel'):
             for line in self:
                 if line.statement_id.state == 'confirm':
-                    raise Warning(_("Please set the bank statement to New before canceling."))
+                    raise UserError(_("Please set the bank statement to New before canceling."))
         return super(BankStatementLine, self).cancel()

addons/account_cancel/views/account_views.xml

@@ -1,6 +1,5 @@
-<?xml version="1.0"?>
-<openerp>
-    <data>
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
         <record id="view_account_journal_form_inherit" model="ir.ui.view">
             <field name="name">account.journal.form</field>
             <field name="model">account.journal</field>
@@ -69,6 +68,4 @@
                 </xpath>
             </field>
         </record>
-
-    </data>
-</openerp>
+</odoo>