diff --git a/addons/calendar/models/calendar.py b/addons/calendar/models/calendar.py
index 59ac53b97e9..5ae925596e8 100644
--- a/addons/calendar/models/calendar.py
+++ b/addons/calendar/models/calendar.py
@@ -873,11 +873,13 @@ class Meeting(models.Model):
 
     @api.onchange('start_date')
     def _onchange_start_date(self):
-        self.start = self.start_date
+        if self.start_date:
+            self.start = self.start_date
 
     @api.onchange('stop_date')
     def _onchange_stop_date(self):
-        self.stop = self.stop_date
+        if self.stop_date:
+            self.stop = self.stop_date
 
     ####################################################
     # Calendar Business, Reccurency, ...
diff --git a/addons/crm/models/crm_lead.py b/addons/crm/models/crm_lead.py
index 5143113150c..1edc0792683 100644
--- a/addons/crm/models/crm_lead.py
+++ b/addons/crm/models/crm_lead.py
@@ -640,7 +640,7 @@ class Lead(models.Model):
     def _get_duplicated_leads_by_emails(self, partner_id, email, include_lost=False):
         """ Search for opportunities that have the same partner and that arent done or cancelled """
         if not email:
-            return []
+            return self.env['crm.lead']
         partner_match_domain = []
         for email in set(email_split(email) + [email]):
             partner_match_domain.append(('email_from', '=ilike', email))
diff --git a/addons/gamification/models/badge.py b/addons/gamification/models/badge.py
index 3ca11577c33..0fd69631650 100644
--- a/addons/gamification/models/badge.py
+++ b/addons/gamification/models/badge.py
@@ -161,13 +161,13 @@ class GamificationBadge(models.Model):
 
         for badge in self:
             owners = badge.owner_ids
-            badge.stats_my = sum(o.user_id == self.env.user for o in owners)
-            badge.stats_this_month = sum(o.create_date >= first_month_day for o in owners)
-            badge.stats_my_this_month = sum(
+            badge.stat_my = sum(o.user_id == self.env.user for o in owners)
+            badge.stat_this_month = sum(o.create_date >= first_month_day for o in owners)
+            badge.stat_my_this_month = sum(
                 o.user_id == self.env.user and o.create_date >= first_month_day
                 for o in owners
             )
-            badge.stats_my_monthly_sending = sum(
+            badge.stat_my_monthly_sending = sum(
                 o.create_uid == self.env.user and o.create_date >= first_month_day
                 for o in owners
             )
diff --git a/addons/l10n_be_invoice_bba/views/account_invoice_view.xml b/addons/l10n_be_invoice_bba/views/account_invoice_view.xml
index 9ab348940a1..ee3e8470e93 100644
--- a/addons/l10n_be_invoice_bba/views/account_invoice_view.xml
+++ b/addons/l10n_be_invoice_bba/views/account_invoice_view.xml
@@ -12,4 +12,15 @@
         </field>
       </field>
     </record>
+
+    <record id="supplier_invoice_bbacomm_form" model="ir.ui.view">
+        <field name="name">account.invoice.supplier.form</field>
+        <field name="model">account.invoice</field>
+        <field name="inherit_id" ref="account.invoice_supplier_form"/>
+        <field name="arch" type="xml">
+            <field name="reference" position="before">
+            <field name="reference_type" attrs="{'readonly':[('state','!=','draft')]}"/>
+            </field>
+        </field>
+    </record>
 </odoo>
diff --git a/addons/l10n_ch/data/account_vat2011_data.xml b/addons/l10n_ch/data/account_vat2011_data.xml
index 7606345ecfc..f07647384cc 100644
--- a/addons/l10n_ch/data/account_vat2011_data.xml
+++ b/addons/l10n_ch/data/account_vat2011_data.xml
@@ -52,6 +52,10 @@
             <field name="name">Switzerland VAT Form: grid 381 base</field>
             <field name="applicability">taxes</field>
         </record>
+        <record id="vat_tag_382_a" model="account.account.tag">
+            <field name="name">Switzerland VAT Form: grid 382 base</field>
+            <field name="applicability">taxes</field>
+        </record>
         <record id="vat_tag_301_b" model="account.account.tag">
             <field name="name">Switzerland VAT Form: grid 301 tax</field>
             <field name="applicability">taxes</field>
@@ -76,6 +80,10 @@
             <field name="name">Switzerland VAT Form: grid 381 tax</field>
             <field name="applicability">taxes</field>
         </record>
+        <record id="vat_tag_382_b" model="account.account.tag">
+            <field name="name">Switzerland VAT Form: grid 382 tax</field>
+            <field name="applicability">taxes</field>
+        </record>
         <record id="vat_tag_400" model="account.account.tag">
             <field name="name">Switzerland VAT Form: grid 400</field>
             <field name="applicability">taxes</field>
@@ -98,7 +106,7 @@
         </record>
 
         <record id="vat_tag_dedouanement" model="account.account.tag">
-           <field name="name">Switzerland VAT Form: 100% dédouanement (base in grid 400)</field>
+            <field name="name">Switzerland VAT Form: 100% dédouanement (base in grid 400)</field>
             <field name="applicability">taxes</field>
         </record>
 
@@ -388,6 +396,18 @@
             <field name="account_id" ref="ch_coa_1171"/>
             <field name="tag_ids" eval="[(6,0,[ref('vat_tag_405')])]"/>
         </record>
+        <record model="account.tax.template" id="vat_77_purchase_return">
+            <field name="name">TVA due a 7.7% (TN) (return)</field>
+            <field name="description">7.7% achat (return)</field>
+            <field name="amount" eval="-7.7"/>
+            <field name="amount_type">percent</field>
+            <field name="sequence" eval="0"/>
+            <field name="chart_template_id" ref="l10nch_chart_template"/>
+            <field name="type_tax_use">purchase</field>
+            <field name="refund_account_id" ref="ch_coa_1170"/>
+            <field name="account_id" ref="ch_coa_1170"/>
+            <field name="tag_ids" eval="[(6,0,[ref('vat_tag_382_a'),ref('vat_tag_382_b')])]"/>
+        </record>
         <record model="account.tax.template" id="vat_80">
             <field name="name">TVA due a 8.0% (TN)</field>
             <field name="description">8.0%</field>
@@ -501,4 +521,15 @@
             <field name="account_id" ref="ch_coa_1171"/>
             <field name="tag_ids" eval="[(6,0,[ref('vat_tag_dedouanement')])]"/>
         </record>
+        <!--# for reverse charge or VAT on Acquisition (group of taxes)-->
+        <record model="account.tax.template" id="vat_77_purchase_reverse">
+            <field name="description">7.7% achat</field>
+            <field name="name">TVA 7.7% sur achat service a l'etranger (reverse charge)</field>
+            <field name="amount" eval="7.7"/>
+            <field name="amount_type">group</field>
+            <field name="type_tax_use">purchase</field>
+            <field name="children_tax_ids" eval="[(6, 0, [ref('vat_77_purchase_return'), ref('vat_77_purchase')])]"/>
+            <field name="chart_template_id" ref="l10nch_chart_template"/>
+            <field name="tag_ids" eval="[(6,0,[ref('vat_tag_382_a'), ref('vat_tag_382_b')])]"/>
+        </record>
 </odoo>
diff --git a/addons/l10n_fr_hr_payroll/report/report_l10n_fr_fiche_paye.xml b/addons/l10n_fr_hr_payroll/report/report_l10n_fr_fiche_paye.xml
index aae52cd9dbb..a8562890ba4 100644
--- a/addons/l10n_fr_hr_payroll/report/report_l10n_fr_fiche_paye.xml
+++ b/addons/l10n_fr_hr_payroll/report/report_l10n_fr_fiche_paye.xml
@@ -12,7 +12,7 @@
                             <h4>Paie du <span t-field="o.date_from"/> au <span t-field="o.date_to"/></h4>
                         </div>
                         <div class="col-xs-4 pull-right">
-                            <table class="table table-bordered" stype="border: 2px solid black;">
+                            <table class="table table-bordered" style="border: 2px solid black;">
                                 <tr>
                                     <td>
                                         <div t-field="o.employee_id.company_id.partner_id"  
diff --git a/addons/website_forum/models/res_users.py b/addons/website_forum/models/res_users.py
index 499fccaba8f..c5dfc9d6594 100644
--- a/addons/website_forum/models/res_users.py
+++ b/addons/website_forum/models/res_users.py
@@ -86,7 +86,9 @@ class Users(models.Model):
                 params['forum_id'] = forum_id
             base_url = self.env['ir.config_parameter'].sudo().get_param('web.base.url')
             token_url = base_url + '/forum/validate_email?%s' % urlencode(params)
-            activation_template.sudo().with_context(token_url=token_url).send_mail(self.id, force_send=True)
+            with self._cr.savepoint():
+                activation_template.sudo().with_context(token_url=token_url).send_mail(
+                    self.id, force_send=True, raise_exception=True)
         return True
 
     @api.one
diff --git a/doc/cla/corporate/janus.md b/doc/cla/corporate/janus.md
new file mode 100644
index 00000000000..4269c11aa22
--- /dev/null
+++ b/doc/cla/corporate/janus.md
@@ -0,0 +1,15 @@
+France, 2018-06-20
+
+JANUS agrees to the terms of the Odoo Corporate Contributor License
+Agreement v1.0.
+
+I declare that I am authorized and able to make this agreement and sign this
+declaration.
+
+Signed,
+
+Martin Duvergey martin.duvergey@gpsante.fr https://github.com/mduvergey
+
+List of contributors:
+
+Martin Duvergey martin.duvergey@gpsante.fr https://github.com/mduvergey
diff --git a/doc/cla/individual/oleksandrpaziuk.md b/doc/cla/individual/oleksandrpaziuk.md
new file mode 100644
index 00000000000..94f0459800e
--- /dev/null
+++ b/doc/cla/individual/oleksandrpaziuk.md
@@ -0,0 +1,11 @@
+Ukraine, 2018-06-11
+
+I hereby agree to the terms of the Odoo Individual Contributor License
+Agreement v1.0.
+
+I declare that I am authorized and able to make this agreement and sign this
+declaration.
+
+Signed,
+
+Paziuk Oleksandr o.paziuk@mobilunity.com https://github.com/oleksandrpaziuk
\ No newline at end of file
diff --git a/odoo/addons/base/ir/ir_model.py b/odoo/addons/base/ir/ir_model.py
index 4395de6cc9b..d5b1fbb6cf9 100644
--- a/odoo/addons/base/ir/ir_model.py
+++ b/odoo/addons/base/ir/ir_model.py
@@ -707,6 +707,8 @@ class IrModelFields(models.Model):
         # add compute function if given
         if field_data['compute']:
             attrs['compute'] = make_compute(field_data['compute'], field_data['depends'])
+        if field_data.get('sparse'):
+            attrs['sparse'] = field_data['sparse']
 
         return fields.Field.by_type[field_data['ttype']](**attrs)
 
diff --git a/odoo/addons/base/tests/test_orm.py b/odoo/addons/base/tests/test_orm.py
index 7f39097b2dd..db76e5b3758 100644
--- a/odoo/addons/base/tests/test_orm.py
+++ b/odoo/addons/base/tests/test_orm.py
@@ -202,6 +202,30 @@ class TestORM(TransactionCase):
         group_user.write({'users': [(3, user.id)]})
         self.assertTrue(user.share)
 
+    @mute_logger('odoo.models')
+    def test_unlink_with_property(self):
+        """ Verify that unlink removes the related ir.property as unprivileged user """
+        user = self.env['res.users'].create({
+            'name': 'Justine Bridou',
+            'login': 'saucisson',
+            'groups_id': [4, self.ref('base.group_partner_manager')],
+        })
+        p1 = self.env['res.partner'].sudo(user).create({'name': 'Zorro'})
+        p1_prop = self.env['ir.property'].sudo(user).create({
+            'name': 'Slip en laine',
+            'res_id': 'res.partner,{}'.format(p1.id),
+            'fields_id': self.env['ir.model.fields'].search([
+                ('model', '=', 'res.partner'), ('name', '=', 'ref')], limit=1).id,
+            'value_text': 'Nain poilu',
+            'type': 'char',
+        })
+
+        # Unlink with unprivileged user
+        p1.unlink()
+
+        # ir.property is deleted
+        self.assertEqual(
+            p1_prop.exists(), self.env['ir.property'], 'p1_prop should have been deleted')
 
 class TestInherits(TransactionCase):
     """ test the behavior of the orm for models that use _inherits;
diff --git a/odoo/models.py b/odoo/models.py
index 62556d94c73..fb786628bcd 100644
--- a/odoo/models.py
+++ b/odoo/models.py
@@ -3364,9 +3364,8 @@ class BaseModel(object):
 
         # Delete the records' properties.
         with self.env.norecompute():
-            self.env['ir.property'].search([('res_id', 'in', refs)]).unlink()
-
             self.check_access_rule('unlink')
+            self.env['ir.property'].search([('res_id', 'in', refs)]).sudo().unlink()
 
             cr = self._cr
             Data = self.env['ir.model.data'].sudo().with_context({})
diff --git a/odoo/modules/registry.py b/odoo/modules/registry.py
index 7bdff852c67..60db60cdd50 100644
--- a/odoo/modules/registry.py
+++ b/odoo/modules/registry.py
@@ -212,9 +212,15 @@ class Registry(Mapping):
         if self._fields_by_model is None:
             # Query manual fields for all models at once
             self._fields_by_model = dic = defaultdict(dict)
+            id2name = {}
             cr.execute('SELECT * FROM ir_model_fields WHERE state=%s', ('manual',))
             for field in cr.dictfetchall():
                 dic[field['model']][field['name']] = field
+                id2name[field['id']] = field['name']
+            # compute the attribute 'sparse'
+            for fields in dic.values():
+                for name, field in fields.items():
+                    field['sparse'] = id2name.get(field['serialization_field_id'])
         return self._fields_by_model[model_name]
 
     def do_parent_store(self, cr):