[MIG] Upgrade version from 8 -> 9

mail_optional_autofollow/README.rst

@@ -22,7 +22,7 @@ Technically, this field is initialized to true if there is a
 
 .. image:: https://odoo-community.org/website/image/ir.attachment/5784_f2813bd/datas
    :alt: Try me on Runbot
-   :target: https://runbot.odoo-community.org/runbot/205/8.0
+   :target: https://runbot.odoo-community.org/runbot/205/9.0
 
 Bug Tracker
 ===========

mail_optional_autofollow/__openerp__.py

@@ -10,7 +10,7 @@
               'Odoo Community Association (OCA)',
     'website': "http://acsone.eu",
     'category': 'Social Network',
-    'version': '8.0.1.0.0',
+    'version': '9.0.1.0.0',
     'license': 'AGPL-3',
     'depends': [
         'mail',

mail_optional_autofollow/tests/test_mail_optional_autofollow.py

@@ -10,8 +10,8 @@ class TestAttachExistingAttachment(common.TransactionCase):
     def setUp(self):
         super(TestAttachExistingAttachment, self).setUp()
         self.partner_obj = self.env['res.partner']
-        self.partner_01 = self.env.ref('base.res_partner_11')
-        self.partner_02 = self.env.ref('base.res_partner_address_20')
+        self.partner_01 = self.env.ref('base.res_partner_10')
+        self.partner_02 = self.env.ref('base.res_partner_address_17')
 
     def test_send_email_attachment(self):
         ctx = self.env.context.copy()