diff --git a/addons/account/models/account.py b/addons/account/models/account.py
index 87d5d7e7f1f..262773414e8 100644
--- a/addons/account/models/account.py
+++ b/addons/account/models/account.py
@@ -686,7 +686,18 @@ class AccountTax(models.Model):
         # the 'Account' decimal precision + 5), and that way it's like
         # rounding after the sum of the tax amounts of each line
         prec = currency.decimal_places
-        if company_id.tax_calculation_rounding_method == 'round_globally' or not bool(self.env.context.get("round", True)):
+
+        # In some cases, it is necessary to force/prevent the rounding of the tax and the total
+        # amounts. For example, in SO/PO line, we don't want to round the price unit at the
+        # precision of the currency.
+        # The context key 'round' allows to force the standard behavior.
+        round_tax = False if company_id.tax_calculation_rounding_method == 'round_globally' else True
+        round_total = True
+        if 'round' in self.env.context:
+            round_tax = bool(self.env.context['round'])
+            round_total = bool(self.env.context['round'])
+
+        if not round_tax:
             prec += 5
         total_excluded = total_included = base = round(price_unit * quantity, prec)
 
@@ -705,7 +716,7 @@ class AccountTax(models.Model):
                 continue
 
             tax_amount = tax._compute_amount(base, price_unit, quantity, product, partner)
-            if company_id.tax_calculation_rounding_method == 'round_globally' or not bool(self.env.context.get("round", True)):
+            if not round_tax:
                 tax_amount = round(tax_amount, prec)
             else:
                 tax_amount = currency.round(tax_amount)
@@ -731,8 +742,8 @@ class AccountTax(models.Model):
 
         return {
             'taxes': sorted(taxes, key=lambda k: k['sequence']),
-            'total_excluded': currency.round(total_excluded) if bool(self.env.context.get("round", True)) else total_excluded,
-            'total_included': currency.round(total_included) if bool(self.env.context.get("round", True)) else total_included,
+            'total_excluded': currency.round(total_excluded) if round_total else total_excluded,
+            'total_included': currency.round(total_included) if round_total else total_included,
             'base': base,
         }
 
diff --git a/addons/account/models/account_move.py b/addons/account/models/account_move.py
index 8efbd9e3c7a..48dc26141b8 100644
--- a/addons/account/models/account_move.py
+++ b/addons/account/models/account_move.py
@@ -1087,7 +1087,7 @@ class AccountMoveLine(models.Model):
             taxes = self.env['account.tax'].browse(tax_ids)
             currency = self.env['res.currency'].browse(vals.get('currency_id'))
             partner = self.env['res.partner'].browse(vals.get('partner_id'))
-            res = taxes.compute_all(amount,
+            res = taxes.with_context(round=True).compute_all(amount,
                 currency, 1, vals.get('product_id'), partner)
             # Adjust line amount if any tax is price_include
             if abs(res['total_excluded']) < abs(amount):
diff --git a/addons/account/static/src/js/account_reconciliation_widgets.js b/addons/account/static/src/js/account_reconciliation_widgets.js
index cb84ee74b23..c32a1a2850a 100644
--- a/addons/account/static/src/js/account_reconciliation_widgets.js
+++ b/addons/account/static/src/js/account_reconciliation_widgets.js
@@ -18,6 +18,7 @@ var pyeval = require('web.pyeval');
 var web_client = require('web.web_client');
 var parse_value = require('web.web_client');
 var Widget = require('web.Widget');
+var session = require('web.session');
 
 var FieldMany2One = core.form_widget_registry.get('many2one');
 var FieldChar = core.form_widget_registry.get('char');
@@ -76,8 +77,6 @@ var abstractReconciliation = Widget.extend(ControlPanelMixin, {
 
         this.action_manager = this.findAncestor(function(ancestor){ return ancestor instanceof ActionManager });
         this.crash_manager = new CrashManager();
-        // Method that tests if a monetary amount == 0, we use 4 digits because no currency uses more
-        this.monetaryIsZero = _.partial(utils.float_is_zero, _, 4);
         this.formatCurrencies; // Method that formats the currency ; loaded from the server
         this.model_res_users = new Model("res.users");
         this.model_tax = new Model("account.tax");
@@ -371,6 +370,11 @@ var abstractReconciliation = Widget.extend(ControlPanelMixin, {
         if (line.ref && line.ref !== line.name)
             line.q_label = line.q_label + " : " + line.ref;
     },
+
+    // Method that tests if a monetary amount == 0, we use 4 digits because no currency uses more
+    monetaryIsZero: function(amount, digits) {
+        return utils.float_is_zero(amount, digits === undefined ? 4 : digits);
+    },
 });
 
 var abstractReconciliationLine = Widget.extend({
@@ -1875,7 +1879,11 @@ var bankStatementReconciliationLine = abstractReconciliationLine.extend({
 
         // Find out if the counterpart is lower than, equal or greater than the transaction being reconciled
         var balance_type = undefined;
-        if (self.monetaryIsZero(self.get("balance"))) balance_type = "equal";
+        var digits = 4;
+        if (this.get("currency_id") && session.get_currency(this.get("currency_id"))) {
+            digits = session.get_currency(this.get("currency_id")).digits[1];
+        }
+        if (self.monetaryIsZero(self.get("balance"), digits)) balance_type = "equal";
         else if (self.get("balance") * self.st_line.amount > 0) balance_type = "greater";
         else if (self.get("balance") * self.st_line.amount < 0) balance_type = "lower";
 
@@ -2070,7 +2078,11 @@ var bankStatementReconciliationLine = abstractReconciliationLine.extend({
         var payment_aml = _.filter(this.get("mv_lines_selected"), function(line) { return line.already_paid });
         var payment_aml_ids = _.collect(payment_aml, function(line) { return line.id });
         var new_aml_dicts = this.prepareCreatedMoveLinesForPersisting(this.getCreatedLines());
-        if (! self.monetaryIsZero(this.get("balance"))) new_aml_dicts.push(this.prepareOpenBalanceForPersisting());
+        var digits = 4;
+        if (this.get("currency_id") && session.get_currency(this.get("currency_id"))) {
+            digits = session.get_currency(this.get("currency_id")).digits[1];
+        }
+        if (! self.monetaryIsZero(this.get("balance"), digits)) new_aml_dicts.push(this.prepareOpenBalanceForPersisting());
         return {
             'counterpart_aml_dicts': counterpart_aml_dicts,
             'payment_aml_ids': payment_aml_ids,
diff --git a/addons/barcodes/static/src/js/form_view_barcode_handler.js b/addons/barcodes/static/src/js/form_view_barcode_handler.js
index a6fa4b55adf..b00bce51c5e 100644
--- a/addons/barcodes/static/src/js/form_view_barcode_handler.js
+++ b/addons/barcodes/static/src/js/form_view_barcode_handler.js
@@ -52,6 +52,11 @@ var FormViewBarcodeHandler = common.AbstractField.extend(BarcodeHandlerMixin, {
         }
     },
 
+    destroy: function () {
+        this.stop_listening();
+        this._super.apply(this, arguments);
+    },
+
     _display_no_edit_mode_warning: function() {
         this.do_warn(_t('Error : Document not editable'), _t('To modify this document, please first start edition.'));
     },
diff --git a/addons/stock/procurement.py b/addons/stock/procurement.py
index 6d1a045ece8..9c8a7c45dae 100644
--- a/addons/stock/procurement.py
+++ b/addons/stock/procurement.py
@@ -423,7 +423,7 @@ class procurement_order(osv.osv):
 
     def _get_orderpoint_date_planned(self, cr, uid, orderpoint, start_date, context=None):
         days = orderpoint.lead_days or 0.0
-        if orderpoint.lead_type=='purchase':
+        if orderpoint.lead_type == 'supplier':
             # These days will be substracted when creating the PO
             days += orderpoint.product_id._select_seller(orderpoint.product_id).delay or 0.0
         date_planned = start_date + relativedelta(days=days)
diff --git a/addons/stock/stock.py b/addons/stock/stock.py
index 8291aedc1a4..34b3c444838 100644
--- a/addons/stock/stock.py
+++ b/addons/stock/stock.py
@@ -1748,6 +1748,10 @@ class stock_picking(models.Model):
                         packlots_transfer = [(4, x.id) for x in operation.pack_lot_ids]
                         stock_operation_obj.write(cr, uid, [new_operation], {'pack_lot_ids': packlots_transfer}, context=context)
 
+                        # the stock.pack.operation.lot records now belong to the new, packaged stock.pack.operation
+                        # we have to create new ones with new quantities for our original, unfinished stock.pack.operation
+                        stock_operation_obj._copy_remaining_pack_lot_ids(cr, uid, new_operation, operation.id, context=context)
+
                     op = stock_operation_obj.browse(cr, uid, new_operation, context=context)
                 pack_operation_ids.append(op.id)
             if operations:
@@ -4512,6 +4516,7 @@ class stock_pack_operation(osv.osv):
             if pack.product_qty - pack.qty_done > 0.0 and pack.qty_done < pack.product_qty:
                 pack2 = self.copy(cr, uid, pack.id, default={'qty_done': 0.0, 'product_qty': pack.product_qty - pack.qty_done}, context=context)
                 self.write(cr, uid, [pack.id], {'product_qty': pack.qty_done}, context=context)
+                self._copy_remaining_pack_lot_ids(cr, uid, pack.id, pack2, context=context)
             else:
                 raise UserError(_('The quantity to split should be smaller than the quantity To Do.  '))
         return True
@@ -4596,6 +4601,17 @@ class stock_pack_operation(osv.osv):
              'context': context,
         }
 
+    def _copy_remaining_pack_lot_ids(self, cr, uid, id, new_operation_id, context=None):
+        stock_pack_operation_lot_obj = self.pool["stock.pack.operation.lot"]
+        old_operation = self.browse(cr, uid, id, context=context)
+
+        for pack_lot_id in old_operation.pack_lot_ids:
+            new_qty_todo = pack_lot_id.qty_todo - pack_lot_id.qty
+
+            if float_compare(new_qty_todo, 0, precision_rounding=old_operation.product_uom_id.rounding) > 0:
+                stock_pack_operation_lot_obj.copy(cr, uid, pack_lot_id.id, {'operation_id': new_operation_id,
+                                                                            'qty_todo': new_qty_todo,
+                                                                            'qty': 0}, context=context)
 
 class stock_pack_operation_lot(osv.osv):
     _name = "stock.pack.operation.lot"
diff --git a/addons/web/static/src/js/views/list_view.js b/addons/web/static/src/js/views/list_view.js
index 0923776c951..bd0abeebccc 100644
--- a/addons/web/static/src/js/views/list_view.js
+++ b/addons/web/static/src/js/views/list_view.js
@@ -1182,8 +1182,8 @@ ListView.List = Class.extend( /** @lends instance.web.ListView.List# */{
                                    _(names).pluck(1).join(', '));
                         record.set(column.id, ids);
                     });
-                // temp empty value
-                record.set(column.id, false);
+                // temporary empty display name
+                record.set(column.id + '__display', false);
             }
         }
         return column.format(record.toForm().data, {
diff --git a/addons/web_editor/static/src/xml/snippets.xml b/addons/web_editor/static/src/xml/snippets.xml
index cbf1e6bef70..3fa6216c7f9 100644
--- a/addons/web_editor/static/src/xml/snippets.xml
+++ b/addons/web_editor/static/src/xml/snippets.xml
@@ -60,7 +60,7 @@
 
     <!-- t-field options -->
     <t t-name="web_editor.many2one.button">
-        <div class="dropdown">
+        <div class="btn-group">
             <a href="#" class="btn btn-default btn-sm dropdown-toggle" data-toggle="dropdown" data-hover="dropdown" title="Search Contact"><i class="fa fa-search"></i></a>
             <ul class="dropdown-menu contact_menu" role="menu">
                 <li><a><input href="#" type="email" placeholder="Search"/></a></li>
diff --git a/addons/website_quote/controllers/main.py b/addons/website_quote/controllers/main.py
index f472cbdfea3..a5e7b6c85ac 100644
--- a/addons/website_quote/controllers/main.py
+++ b/addons/website_quote/controllers/main.py
@@ -30,7 +30,7 @@ class sale_quote(http.Controller):
             if request.session.get('view_quote',False)!=now:
                 request.session['view_quote'] = now
                 body=_('Quotation viewed by customer')
-                _message_post_helper(res_model='sale.order', res_id=order.id, message=body, token=token, token_field="access_token", message_type='notification')
+                _message_post_helper(res_model='sale.order', res_id=order.id, message=body, token=token, token_field="access_token", message_type='notification', subtype="mail.mt_note", partner_ids=order.user_id.partner_id.ids)
         days = 0
         if order.validity_date:
             days = (datetime.datetime.strptime(order.validity_date, '%Y-%m-%d') - datetime.datetime.now()).days + 1
diff --git a/openerp/addons/base/ir/ir_http.py b/openerp/addons/base/ir/ir_http.py
index d8ece72e1b1..dde75a64a76 100644
--- a/openerp/addons/base/ir/ir_http.py
+++ b/openerp/addons/base/ir/ir_http.py
@@ -302,7 +302,7 @@ class ir_http(osv.AbstractModel):
 
         # cache
         etag = hasattr(request, 'httprequest') and request.httprequest.headers.get('If-None-Match')
-        retag = hashlib.md5(last_update).hexdigest()
+        retag = '"%s"' % hashlib.md5(last_update).hexdigest()
         status = status or (304 if etag == retag else 200)
         headers.append(('ETag', retag))
         headers.append(('Cache-Control', 'max-age=%s' % (STATIC_CACHE if unique else 0)))
diff --git a/openerp/addons/test_new_api/models.py b/openerp/addons/test_new_api/models.py
index b9e0ffc0957..f6d533d29f1 100644
--- a/openerp/addons/test_new_api/models.py
+++ b/openerp/addons/test_new_api/models.py
@@ -82,6 +82,7 @@ class Category(models.Model):
     name = fields.Char(required=True)
     color = fields.Integer('Color Index')
     parent = fields.Many2one('test_new_api.category')
+    root_categ = fields.Many2one(_name, compute='_compute_root_categ')
     display_name = fields.Char(compute='_compute_display_name', inverse='_inverse_display_name')
     dummy = fields.Char(store=False)
     discussions = fields.Many2many('test_new_api.discussion', 'test_new_api_discussion_category',
@@ -95,6 +96,14 @@ class Category(models.Model):
         else:
             self.display_name = self.name
 
+    @api.depends('parent')
+    def _compute_root_categ(self):
+        for cat in self:
+            current = cat
+            while current.parent:
+                current = current.parent
+            cat.root_categ = current
+
     @api.one
     def _inverse_display_name(self):
         names = self.display_name.split('/')
diff --git a/openerp/addons/test_new_api/tests/test_onchange.py b/openerp/addons/test_new_api/tests/test_onchange.py
index adecda3e4aa..8516f9394e2 100644
--- a/openerp/addons/test_new_api/tests/test_onchange.py
+++ b/openerp/addons/test_new_api/tests/test_onchange.py
@@ -75,6 +75,33 @@ class TestOnChange(common.TransactionCase):
         result = self.Message.onchange(values, 'body', field_onchange)
         self.assertNotIn('name', result['value'])
 
+    def test_onchange_many2one(self):
+        Category = self.env['test_new_api.category']
+
+        field_onchange = Category._onchange_spec()
+        self.assertEqual(field_onchange.get('parent'), '1')
+
+        root = Category.create(dict(name='root'))
+
+        values = {
+            'name': 'test',
+            'parent': root.id,
+            'root_categ': False,
+        }
+
+        self.env.invalidate_all()
+        result = Category.onchange(values, 'parent', field_onchange).get('value', {})
+        self.assertIn('root_categ', result)
+        self.assertEqual(result['root_categ'], root.name_get()[0])
+
+        values.update(result)
+        values['parent'] = False
+
+        self.env.invalidate_all()
+        result = Category.onchange(values, 'parent', field_onchange).get('value', {})
+        self.assertIn('root_categ', result)
+        self.assertIs(result['root_categ'], False)
+
     def test_onchange_one2many(self):
         """ test the effect of onchange() on one2many fields """
         BODY = "What a beautiful day!"
diff --git a/openerp/addons/test_new_api/views.xml b/openerp/addons/test_new_api/views.xml
index 9cc5c6ce2ce..b8e56e1119c 100644
--- a/openerp/addons/test_new_api/views.xml
+++ b/openerp/addons/test_new_api/views.xml
@@ -207,6 +207,7 @@
                         <group>
                             <field name="name"/>
                             <field name="parent"/>
+                            <field name="root_categ"/>
                             <field name="dummy"/>
                         </group>
                     </sheet>
diff --git a/openerp/fields.py b/openerp/fields.py
index a9a86fbd681..a60f8223539 100644
--- a/openerp/fields.py
+++ b/openerp/fields.py
@@ -1733,6 +1733,10 @@ class Many2one(_Relational):
     def convert_to_display_name(self, value, record=None):
         return ustr(value.display_name)
 
+    def convert_to_onchange(self, value, fnames=None):
+        if not value.id:
+            return False
+        return super(Many2one, self).convert_to_onchange(value, fnames)
 
 class UnionUpdate(SpecialValue):
     """ Placeholder for a value update; when this value is taken from the cache,
diff --git a/openerp/modules/module.py b/openerp/modules/module.py
index c7b01b99736..4f953091dd5 100644
--- a/openerp/modules/module.py
+++ b/openerp/modules/module.py
@@ -158,7 +158,7 @@ def get_module_path(module, downloaded=False, display_warning=True):
     """
     initialize_sys_path()
     for adp in ad_paths:
-        if os.path.exists(opj(adp, module)) or os.path.exists(opj(adp, '%s.zip' % module)):
+        if os.path.exists(opj(adp, module, MANIFEST)) or os.path.exists(opj(adp, '%s.zip' % module)):
             return opj(adp, module)
 
     if downloaded:
diff --git a/openerp/tools/convert.py b/openerp/tools/convert.py
index 68ed0b4ffbf..f7c5677fea8 100644
--- a/openerp/tools/convert.py
+++ b/openerp/tools/convert.py
@@ -743,7 +743,8 @@ form: module.record_id""" % (xml_id,)
         record.append(Field(name, name='name'))
         record.append(Field(full_tpl_id, name='key'))
         record.append(Field("qweb", name='type'))
-        record.append(Field(el.get('priority', "16"), name='priority'))
+        if 'priority' in el.attrib:
+            record.append(Field(el.get('priority'), name='priority'))
         if 'inherit_id' in el.attrib:
             record.append(Field(name='inherit_id', ref=el.get('inherit_id')))
         if 'website_id' in el.attrib: