diff --git a/addons/account/report/account_overdue_report.py b/addons/account/report/account_overdue_report.py
index 0fb7529e20b..fd032197233 100644
--- a/addons/account/report/account_overdue_report.py
+++ b/addons/account/report/account_overdue_report.py
@@ -25,7 +25,7 @@ class ReportOverdue(models.AbstractModel):
             "FROM account_move_line l "
             "JOIN account_account_type at ON (l.user_type_id = at.id) "
             "JOIN account_move m ON (l.move_id = m.id) "
-            "WHERE l.partner_id IN %s AND at.type IN ('receivable', 'payable') GROUP BY l.date, l.name, l.ref, l.date_maturity, l.partner_id, at.type, l.blocked, l.amount_currency, l.currency_id, l.move_id, m.name", (((fields.date.today(), ) + (tuple(partner_ids),))))
+            "WHERE l.partner_id IN %s AND at.type IN ('receivable', 'payable') AND NOT l.reconciled GROUP BY l.date, l.name, l.ref, l.date_maturity, l.partner_id, at.type, l.blocked, l.amount_currency, l.currency_id, l.move_id, m.name", (((fields.date.today(), ) + (tuple(partner_ids),))))
         for row in self.env.cr.dictfetchall():
             res[row.pop('partner_id')].append(row)
         return res
diff --git a/addons/crm/wizard/base_partner_merge.py b/addons/crm/wizard/base_partner_merge.py
index 18fd4c6a3e6..27f3f3e002d 100644
--- a/addons/crm/wizard/base_partner_merge.py
+++ b/addons/crm/wizard/base_partner_merge.py
@@ -489,13 +489,19 @@ class MergePartnerAutomatic(models.TransientModel):
 
         counter = 0
         for min_id, aggr_ids in self._cr.fetchall():
-            # exclude partner according to options
-            if model_mapping and self._partner_use_in(aggr_ids, model_mapping):
+            # To ensure that the used partners are accessible by the user
+            partners = self.env['res.partner'].search([('id', 'in', aggr_ids)])
+            if len(partners) < 2:
                 continue
+
+            # exclude partner according to options
+            if model_mapping and self._partner_use_in(partners.ids, model_mapping):
+                continue
+
             self.env['base.partner.merge.line'].create({
                 'wizard_id': self.id,
                 'min_id': min_id,
-                'aggr_ids': aggr_ids,
+                'aggr_ids': partners.ids,
             })
             counter += 1
 
diff --git a/addons/sale/models/sale.py b/addons/sale/models/sale.py
index aca9f0660d1..4902c4d6fb2 100644
--- a/addons/sale/models/sale.py
+++ b/addons/sale/models/sale.py
@@ -345,7 +345,7 @@ class SaleOrder(models.Model):
                     vals = {}
                     if order.name not in invoices[group_key].origin.split(', '):
                         vals['origin'] = invoices[group_key].origin + ', ' + order.name
-                    if order.client_order_ref and order.client_order_ref not in invoices[group_key].name.split(', '):
+                    if order.client_order_ref and order.client_order_ref not in invoices[group_key].name.split(', ') and order.client_order_ref != invoices[group_key].name:
                         vals['name'] = invoices[group_key].name + ', ' + order.client_order_ref
                     invoices[group_key].write(vals)
                 if line.qty_to_invoice > 0:
diff --git a/addons/web/controllers/main.py b/addons/web/controllers/main.py
index 432f473de1d..cd7b93a549f 100644
--- a/addons/web/controllers/main.py
+++ b/addons/web/controllers/main.py
@@ -646,8 +646,6 @@ class Database(http.Controller):
     @http.route('/web/database/create', type='http', auth="none", methods=['POST'], csrf=False)
     def create(self, master_pwd, name, lang, password, **post):
         try:
-            if not re.match('^[a-zA-Z][a-zA-Z0-9_]+$', name):
-                raise Exception(_('Invalid database name. Only alphanumerical characters and underscore are allowed.'))
             # country code could be = "False" which is actually True in python
             country_code = post.get('country_code') or False
             dispatch_rpc('db', 'create_database', [master_pwd, name, bool(post.get('demo')), lang, password, post['login'], country_code])
@@ -660,8 +658,6 @@ class Database(http.Controller):
     @http.route('/web/database/duplicate', type='http', auth="none", methods=['POST'], csrf=False)
     def duplicate(self, master_pwd, name, new_name):
         try:
-            if not re.match('^[a-zA-Z][a-zA-Z0-9_]+$', new_name):
-                raise Exception(_('Invalid database name. Only alphanumerical characters and underscore are allowed.'))
             dispatch_rpc('db', 'duplicate_database', [master_pwd, name, new_name])
             return http.local_redirect('/web/database/manager')
         except Exception, e:
diff --git a/addons/web/static/lib/qweb/qweb2.js b/addons/web/static/lib/qweb/qweb2.js
index 1e854a6960c..378c5eb6023 100644
--- a/addons/web/static/lib/qweb/qweb2.js
+++ b/addons/web/static/lib/qweb/qweb2.js
@@ -129,12 +129,15 @@ var QWeb2 = {
                 }
                 return r.join('');
             } else {
+                // avoid XMLSerializer with text node for IE
+                if (node.nodeType == 3) {
+                    return node.data;
+                }
                 if (typeof XMLSerializer !== 'undefined') {
                     return (new XMLSerializer()).serializeToString(node);
                 } else {
                     switch(node.nodeType) {
                     case 1: return node.outerHTML;
-                    case 3: return node.data;
                     case 4: return '<![CDATA[' + node.data + ']]>';
                     case 8: return '<!-- ' + node.data + '-->';
                     }
diff --git a/addons/web/views/database_manager.html b/addons/web/views/database_manager.html
index ff78eddd6e3..7cef4678e8d 100644
--- a/addons/web/views/database_manager.html
+++ b/addons/web/views/database_manager.html
@@ -61,7 +61,7 @@
     <div class="row">
       <div class="col-md-12">
         <label for="name" class="control-label">Database Name</label>
-        <input id="name" type="text" name="name" class="form-control" required="required" autocomplete="off" pattern="^[a-zA-Z][a-zA-Z0-9_]+$" title="Only alphanumerical characters and underscore are allowed"/>
+        <input id="name" type="text" name="name" class="form-control" required="required" autocomplete="off"/>
       </div>
     </div>
   </div>
@@ -208,7 +208,7 @@
             </div>
             <div class="form-group">
               <label for="name" class="control-label">Database Name</label>
-              <input id="name" type="text" name="name" class="form-control" required="required" pattern="^[a-zA-Z][a-zA-Z0-9_]+$" title="Only alphanumerical characters and underscore are allowed"/>
+              <input id="name" type="text" name="name" class="form-control" required="required"/>
             </div>
             <div class="form-group">
                 <label for="copy">This database might have been moved or copied.</label>
@@ -281,7 +281,7 @@
             </div>
             <div class="form-group">
               <label for="new_name" class="control-label">New Name</label>
-              <input id="new_name" type="text" name="new_name" class="form-control" required="required" pattern="^[a-zA-Z][a-zA-Z0-9_]+$" title="Only alphanumerical characters and underscore are allowed"/>
+              <input id="new_name" type="text" name="new_name" class="form-control" required="required"/>
             </div>
           </div>
           <div class="modal-footer">
diff --git a/odoo/addons/base/module/module_data.xml b/odoo/addons/base/module/module_data.xml
index 7781aa38bdc..a8e74724bd5 100644
--- a/odoo/addons/base/module/module_data.xml
+++ b/odoo/addons/base/module/module_data.xml
@@ -208,7 +208,7 @@
         </record>
 
         <record id="group_partner_manager" model="res.groups">
-            <field name="category_id" ref="module_category_extra"/>
+            <field name="category_id" ref="module_category_usability"/>
         </record>
 
     </data>