diff --git a/addons/web/__init__.py b/addons/web/__init__.py
index bcb8f6db28c..2478edb81b7 100644
--- a/addons/web/__init__.py
+++ b/addons/web/__init__.py
@@ -5,8 +5,7 @@ import logging
 
 _logger = logging.getLogger(__name__)
 
-
-try:
+def wsgi_postload():
     import openerp.wsgi
     import os
     import tempfile
@@ -24,9 +23,6 @@ try:
     #import openerp.wsgi
     openerp.wsgi.register_wsgi_handler(app)
 
-except ImportError:
-    _logger.info("standalone mode")
-
 # TODO
 # if we detect that we are imported from the openerp server register common.Root() as a wsgi entry point
 
diff --git a/addons/web/__openerp__.py b/addons/web/__openerp__.py
index 9a1fd119fb9..74633fa4969 100644
--- a/addons/web/__openerp__.py
+++ b/addons/web/__openerp__.py
@@ -45,5 +45,5 @@
         "static/src/css/base.css",
         "static/src/css/data_export.css",
     ],
-    'wsgi' : 'app',
+    'post_load' : 'wsgi_postload',
 }
diff --git a/addons/web/common/session.py b/addons/web/common/session.py
index 3691f88e3f5..d1997a3f903 100644
--- a/addons/web/common/session.py
+++ b/addons/web/common/session.py
@@ -43,30 +43,30 @@ class OpenERPSession(object):
         
     def build_connection(self):
         return openerplib.get_connection(hostname=self._server, port=self._port,
-                                         database=self._db,
+                                         database=self._db, login=self._login,
                                          user_id=self._uid, password=self._password)
 
     def proxy(self, service):
         return self.build_connection().get_service(service)
 
-    def bind(self, db, uid, password):
+    def bind(self, db, uid, login, password):
         self._db = db
         self._uid = uid
+        self._login = login
         self._password = password
 
     def login(self, db, login, password):
         uid = self.proxy('common').login(db, login, password)
-        self.bind(db, uid, password)
-        self._login = login
+        self.bind(db, uid, login, password)
         
         if uid: self.get_context()
         return uid
 
-    def assert_valid(self):
+    def assert_valid(self, force=False):
         """
         Ensures this session is valid (logged into the openerp server)
         """
-        self.build_connection().check_login(False)
+        self.build_connection().check_login(force)
 
     def execute(self, model, func, *l, **d):
         self.assert_valid()
diff --git a/addons/web/controllers/main.py b/addons/web/controllers/main.py
index 6ce4bd612f2..d0c8950f9e1 100644
--- a/addons/web/controllers/main.py
+++ b/addons/web/controllers/main.py
@@ -301,6 +301,7 @@ class Session(openerpweb.Controller):
         }
     @openerpweb.jsonrequest
     def get_session_info(self, req):
+        req.session.assert_valid(force=True)
         return {
             "uid": req.session._uid,
             "context": req.session.get_context() if req.session._uid else False,
diff --git a/addons/web/static/src/js/core.js b/addons/web/static/src/js/core.js
index 6462529d0c9..a33fca458d0 100644
--- a/addons/web/static/src/js/core.js
+++ b/addons/web/static/src/js/core.js
@@ -501,6 +501,8 @@ openerp.web.Session = openerp.web.CallbackEnabled.extend( /** @lends openerp.web
                 self.on_session_valid();
             else
                 self.on_session_invalid();
+        }, function() {
+            self.on_session_invalid();
         });
     },
     /**
@@ -741,6 +743,59 @@ openerp.web.SessionAware = openerp.web.CallbackEnabled.extend(/** @lends openerp
     }
 });
 
+/**
+ * Base class for all visual components. Provides a lot of functionalities helpful
+ * for the management of a part of the DOM.
+ *
+ * Widget handles:
+ * - Rendering with QWeb.
+ * - Life-cycle management and parenting (when a parent is destroyed, all its children are
+ *     destroyed too).
+ * - Insertion in DOM.
+ *
+ * Widget also extends SessionAware for ease of use.
+ *
+ * Guide to create implementations of the Widget class:
+ * ==============================================
+ *
+ * Here is a sample child class:
+ *
+ * MyWidget = openerp.base.Widget.extend({
+ *     // the name of the QWeb template to use for rendering
+ *     template: "MyQWebTemplate",
+ *     // identifier prefix, it is useful to put an obvious one for debugging
+ *     identifier_prefix: 'my-id-prefix-',
+ *
+ *     init: function(parent) {
+ *         this._super(parent);
+ *         // stuff that you want to init before the rendering
+ *     },
+ *     start: function() {
+ *         this._super();
+ *         // stuff you want to make after the rendering, `this.$element` holds a correct value
+ *         this.$element.find(".my_button").click(/* an example of event binding * /);
+ *
+ *         // if you have some asynchronous operations, it's a good idea to return
+ *         // a promise in start()
+ *         var promise = this.rpc(...);
+ *         return promise;
+ *     }
+ * });
+ *
+ * Now this class can simply be used with the following syntax:
+ *
+ * var my_widget = new MyWidget(this);
+ * my_widget.appendTo($(".some-div"));
+ *
+ * With these two lines, the MyWidget instance was inited, rendered, it was inserted into the
+ * DOM inside the ".some-div" div and its events were binded.
+ *
+ * And of course, when you don't need that widget anymore, just do:
+ *
+ * my_widget.stop();
+ *
+ * That will kill the widget in a clean way and erase its content from the dom.
+ */
 openerp.web.Widget = openerp.web.SessionAware.extend(/** @lends openerp.web.Widget# */{
     /**
      * The name of the QWeb template that will be used for rendering. Must be
diff --git a/addons/web/static/src/js/search.js b/addons/web/static/src/js/search.js
index f6c53b4ad17..5db66ab7260 100644
--- a/addons/web/static/src/js/search.js
+++ b/addons/web/static/src/js/search.js
@@ -2,6 +2,7 @@ openerp.web.search = function(openerp) {
 var QWeb = openerp.web.qweb;
 
 openerp.web.SearchView = openerp.web.Widget.extend(/** @lends openerp.web.SearchView# */{
+    template: "EmptyComponent",
     /**
      * @constructs openerp.web.SearchView
      * @extends openerp.web.Widget
@@ -12,8 +13,8 @@ openerp.web.SearchView = openerp.web.Widget.extend(/** @lends openerp.web.Search
      * @param view_id
      * @param defaults
      */
-    init: function(parent, element_id, dataset, view_id, defaults) {
-        this._super(parent, element_id);
+    init: function(parent, dataset, view_id, defaults) {
+        this._super(parent);
         this.dataset = dataset;
         this.model = dataset.model;
         this.view_id = view_id;
@@ -28,6 +29,7 @@ openerp.web.SearchView = openerp.web.Widget.extend(/** @lends openerp.web.Search
         this.ready = $.Deferred();
     },
     start: function() {
+        this._super();
         this.rpc("/web/searchview/load", {"model": this.model, "view_id":this.view_id}, this.on_loaded);
         return this.ready.promise();
     },
@@ -463,30 +465,6 @@ openerp.web.search.Widget = openerp.web.Widget.extend( /** @lends openerp.web.se
         }));
     }
 });
-openerp.web.search.FilterGroup = openerp.web.search.Widget.extend(/** @lends openerp.web.search.FilterGroup# */{
-    template: 'SearchView.filters',
-    /**
-     * Inclusive group of filters, creates a continuous "button" with clickable
-     * sections (the normal display for filters is to be a self-contained button)
-     *
-     * @constructs openerp.web.search.FilterGroup
-     * @extends openerp.web.search.Widget
-     *
-     * @param {Array<openerp.web.search.Filter>} filters elements of the group
-     * @param {openerp.web.SearchView} view view in which the filters are contained
-     */
-    init: function (filters, view) {
-        this._super(view);
-        this.filters = filters;
-        this.length = filters.length;
-    },
-    start: function () {
-        this._super();
-        _.each(this.filters, function (filter) {
-            filter.start();
-        });
-    }
-});
 openerp.web.search.add_expand_listener = function($root) {
     $root.find('a.searchview_group_string').click(function (e) {
         $root.toggleClass('folded expanded');
@@ -533,6 +511,49 @@ openerp.web.search.Input = openerp.web.search.Widget.extend( /** @lends openerp.
             "get_domain not implemented for widget " + this.attrs.type);
     }
 });
+openerp.web.search.FilterGroup = openerp.web.search.Input.extend(/** @lends openerp.web.search.FilterGroup# */{
+    template: 'SearchView.filters',
+    /**
+     * Inclusive group of filters, creates a continuous "button" with clickable
+     * sections (the normal display for filters is to be a self-contained button)
+     *
+     * @constructs openerp.web.search.FilterGroup
+     * @extends openerp.web.search.Input
+     *
+     * @param {Array<openerp.web.search.Filter>} filters elements of the group
+     * @param {openerp.web.SearchView} view view in which the filters are contained
+     */
+    init: function (filters, view) {
+        this._super(view);
+        this.filters = filters;
+        this.length = filters.length;
+    },
+    start: function () {
+        this._super();
+        _.each(this.filters, function (filter) {
+            filter.start();
+        });
+    },
+    get_context: function () { },
+    /**
+     * Handles domains-fetching for all the filters within it: groups them.
+     */
+    get_domain: function () {
+        var domains = _(this.filters).chain()
+            .filter(function (filter) { return filter.is_enabled(); })
+            .map(function (filter) { return filter.attrs.domain; })
+            .value();
+
+        if (!domains.length) { return; }
+        if (domains.length === 1) { return domains[0]; }
+        for (var i=domains.length; --i;) {
+            domains.unshift(['|']);
+        }
+        return _.extend(new openerp.web.CompoundDomain(), {
+            __domains: domains
+        });
+    }
+});
 openerp.web.search.Filter = openerp.web.search.Input.extend(/** @lends openerp.web.search.Filter# */{
     template: 'SearchView.filter',
     /**
@@ -586,12 +607,11 @@ openerp.web.search.Filter = openerp.web.search.Input.extend(/** @lends openerp.w
         }
         return this.attrs.context;
     },
-    get_domain: function () {
-        if (!this.is_enabled()) {
-            return;
-        }
-        return this.attrs.domain;
-    }
+    /**
+     * Does not return anything: filter domain is handled at the FilterGroup
+     * level
+     */
+    get_domain: function () { }
 });
 openerp.web.search.Field = openerp.web.search.Input.extend( /** @lends openerp.web.search.Field# */ {
     template: 'SearchView.field',
diff --git a/addons/web/static/src/js/view_form.js b/addons/web/static/src/js/view_form.js
index a2188d736fd..d3293b4f2ad 100644
--- a/addons/web/static/src/js/view_form.js
+++ b/addons/web/static/src/js/view_form.js
@@ -10,20 +10,19 @@ openerp.web.FormView = openerp.web.View.extend( /** @lends openerp.web.FormView#
      * view should be displayed (if there is one active).
      */
     searchable: false,
-    template: "FormView",
+    form_template: "FormView",
     /**
      * @constructs openerp.web.FormView
      * @extends openerp.web.View
      * 
      * @param {openerp.web.Session} session the current openerp session
-     * @param {String} element_id this view's root element id
      * @param {openerp.web.DataSet} dataset the dataset this view will work with
      * @param {String} view_id the identifier of the OpenERP view object
      *
      * @property {openerp.web.Registry} registry=openerp.web.form.widgets widgets registry for this form view instance
      */
-    init: function(parent, element_id, dataset, view_id, options) {
-        this._super(parent, element_id);
+    init: function(parent, dataset, view_id, options) {
+        this._super(parent);
         this.set_default_options(options);
         this.dataset = dataset;
         this.model = dataset.model;
@@ -45,6 +44,10 @@ openerp.web.FormView = openerp.web.View.extend( /** @lends openerp.web.FormView#
         _.defaults(this.options, {"always_show_new_button": true});
     },
     start: function() {
+        this._super();
+        return this.init_view();
+    },
+    init_view: function() {
         if (this.embedded_view) {
             var def = $.Deferred().then(this.on_loaded);
             var self = this;
@@ -75,7 +78,7 @@ openerp.web.FormView = openerp.web.View.extend( /** @lends openerp.web.FormView#
         this.fields_view = data;
         var frame = new (this.registry.get_object('frame'))(this, this.fields_view.arch);
 
-        this.$element.html(QWeb.render(this.template, { 'frame': frame, 'view': this }));
+        this.$element.html(QWeb.render(this.form_template, { 'frame': frame, 'view': this }));
         _.each(this.widgets, function(w) {
             w.start();
         });
@@ -399,7 +402,6 @@ openerp.web.FormView = openerp.web.View.extend( /** @lends openerp.web.FormView#
         if (!r.result) {
             // should not happen in the server, but may happen for internal purpose
         } else {
-            console.debug(_.sprintf("The record #%s has been saved.", this.datarecord.id));
             if (success) {
                 success(r);
             }
@@ -480,11 +482,11 @@ openerp.web.FormDialog = openerp.web.Dialog.extend({
     },
     start: function() {
         this._super();
-        this.form = new openerp.web.FormView(this, this.element_id, this.dataset, this.view_id, {
+        this.form = new openerp.web.FormView(this, this.dataset, this.view_id, {
             sidebar: false,
             pager: false
         });
-        this.form.start();
+        this.form.appendTo(this.$element);
         this.form.on_created.add_last(this.on_form_dialog_saved);
         this.form.on_saved.add_last(this.on_form_dialog_saved);
         return this;
@@ -829,7 +831,7 @@ openerp.web.form.WidgetButton = openerp.web.form.Widget.extend({
     },
     on_click: function(saved) {
         var self = this;
-        if ((!this.node.attrs.special && this.view.dirty_for_user && saved !== true) || !this.view.recordcount.id) {
+        if ((!this.node.attrs.special && this.view.dirty_for_user && saved !== true) || !this.view.datarecord.id) {
             this.view.do_save(function() {
                 self.on_click(true);
             });
@@ -2022,7 +2024,7 @@ openerp.web.form.FieldMany2Many = openerp.web.form.Field.extend({
             self.on_ui_change();
         });
 
-        this.list_view = new openerp.web.form.Many2ManyListView(this, this.list_id, this.dataset, false, {
+        this.list_view = new openerp.web.form.Many2ManyListView(this, this.dataset, false, {
                     'addable': 'Add',
                     'selectable': self.multi_selection
             });
@@ -2031,7 +2033,7 @@ openerp.web.form.FieldMany2Many = openerp.web.form.Field.extend({
             self.is_started.resolve();
         });
         setTimeout(function () {
-            self.list_view.start();
+            self.list_view.appendTo($("#" + self.list_id));
         }, 0);
     },
     set_value: function(value) {
@@ -2141,7 +2143,7 @@ openerp.web.form.SelectCreatePopup = openerp.web.OldWidget.extend(/** @lends ope
             this.searchview.stop();
         }
         this.searchview = new openerp.web.SearchView(this,
-                this.element_id + "_search", this.dataset, false, {
+                this.dataset, false, {
                     "selectable": !this.options.disable_multiple_selection,
                     "deletable": false
                 });
@@ -2170,15 +2172,17 @@ openerp.web.form.SelectCreatePopup = openerp.web.OldWidget.extend(/** @lends ope
                 self.stop();
             });
             self.view_list = new openerp.web.form.SelectCreateListView(self,
-                    self.element_id + "_view_list", self.dataset, false,
+                    self.dataset, false,
                     {'deletable': false});
             self.view_list.popup = self;
-            self.view_list.do_show();
-            self.view_list.start().then(function() {
+            self.view_list.appendTo($("#" + self.element_id + "_view_list")).pipe(function() {
+                self.view_list.do_show();
+            }).pipe(function() {
                 self.searchview.do_search();
             });
+            
         });
-        this.searchview.start();
+        this.searchview.appendTo($("#" + this.element_id + "_search"));
     },
     create_row: function(data) {
         var self = this;
@@ -2205,11 +2209,11 @@ openerp.web.form.SelectCreatePopup = openerp.web.OldWidget.extend(/** @lends ope
             this.view_list.$element.hide();
         }
         this.dataset.index = null;
-        this.view_form = new openerp.web.FormView(this, this.element_id + "_view_form", this.dataset, false);
+        this.view_form = new openerp.web.FormView(this, this.dataset, false);
         if (this.options.alternative_form_view) {
             this.view_form.set_embedded_view(this.options.alternative_form_view);
         }
-        this.view_form.start();
+        this.view_form.appendTo(this.$element.find("#" + this.element_id + "_view_form"));
         this.view_form.on_loaded.add_last(function() {
             var $buttons = self.view_form.$element.find(".oe_form_buttons");
             $buttons.html(QWeb.render("SelectCreatePopup.form.buttons", {widget:self}));
@@ -2314,11 +2318,11 @@ openerp.web.form.FormOpenPopup = openerp.web.OldWidget.extend(/** @lends openerp
     on_write_completed: function() {},
     setup_form_view: function() {
         var self = this;
-        this.view_form = new openerp.web.FormView(this, this.element_id + "_view_form", this.dataset, false);
+        this.view_form = new openerp.web.FormView(this, this.dataset, false);
         if (this.options.alternative_form_view) {
             this.view_form.set_embedded_view(this.options.alternative_form_view);
         }
-        this.view_form.start();
+        this.view_form.appendTo(this.$element.find("#" + this.element_id + "_view_form"));
         this.view_form.on_loaded.add_last(function() {
             var $buttons = self.view_form.$element.find(".oe_form_buttons");
             $buttons.html(QWeb.render("FormOpenPopup.form.buttons"));
@@ -2549,7 +2553,7 @@ openerp.web.form.FieldBinaryImage = openerp.web.form.FieldBinary.extend({
 });
 
 openerp.web.form.FieldStatus = openerp.web.form.Field.extend({
-    template: "FieldStatus",
+    template: "EmptyComponent",
     start: function() {
         this._super();
         this.selected_value = null;
diff --git a/addons/web/static/src/js/view_list.js b/addons/web/static/src/js/view_list.js
index 883fae81bbf..f8a89cd34a1 100644
--- a/addons/web/static/src/js/view_list.js
+++ b/addons/web/static/src/js/view_list.js
@@ -31,7 +31,6 @@ openerp.web.ListView = openerp.web.View.extend( /** @lends openerp.web.ListView#
      * @extends openerp.web.View
      *
      * @param parent parent object
-     * @param element_id the id of the DOM elements this view should link itself to
      * @param {openerp.web.DataSet} dataset the dataset the view should work with
      * @param {String} view_id the listview's identifier, if any
      * @param {Object} options A set of options used to configure the view
@@ -42,9 +41,9 @@ openerp.web.ListView = openerp.web.View.extend( /** @lends openerp.web.ListView#
      * @param {Boolean} [options.sortable=true] is it possible to sort the table by clicking on column headers
      * @param {Boolean} [options.reorderable=true] is it possible to reorder list rows
      */
-    init: function(parent, element_id, dataset, view_id, options) {
+    init: function(parent, dataset, view_id, options) {
         var self = this;
-        this._super(parent, element_id);
+        this._super(parent);
         this.set_default_options(_.extend({}, this.defaults, options || {}));
         this.dataset = dataset;
         this.model = dataset.model;
@@ -128,6 +127,7 @@ openerp.web.ListView = openerp.web.View.extend( /** @lends openerp.web.ListView#
      * @returns {$.Deferred} loading promise
      */
     start: function() {
+        this._super();
         this.$element.addClass('oe-listview');
         return this.reload_view(null, null, true);
     },
diff --git a/addons/web/static/src/js/view_list_editable.js b/addons/web/static/src/js/view_list_editable.js
index c38c43a4c9c..b5a5a3d8c10 100644
--- a/addons/web/static/src/js/view_list_editable.js
+++ b/addons/web/static/src/js/view_list_editable.js
@@ -180,11 +180,11 @@ openerp.web.list_editable = function (openerp) {
                 }
                 self.edition = true;
                 self.edition_id = record_id;
-                self.edition_form = _.extend(new openerp.web.FormView(
-                        self, $new_row.attr('id'), self.dataset, false), {
-                    template: 'ListView.row.form',
+                self.edition_form = _.extend(new openerp.web.ListEditableFormView(self, self.dataset, false), {
+                    form_template: 'ListView.row.form',
                     registry: openerp.web.list.form.widgets
                 });
+                self.edition_form.appendTo($("#" + $new_row.attr('id')));
                 $.when(self.edition_form.on_loaded(self.get_form_fields_view())).then(function () {
                     // put in $.when just in case  FormView.on_loaded becomes asynchronous
                     $new_row.find('td')
@@ -333,4 +333,8 @@ openerp.web.list_editable = function (openerp) {
         });
         list_form_widgets.add(key, new_path);
     });
+    
+    openerp.web.ListEditableFormView = openerp.web.FormView.extend({
+        init_view: function() {}
+    });
 };
diff --git a/addons/web/static/src/js/view_tree.js b/addons/web/static/src/js/view_tree.js
index 2a314f57fa8..7988d65805c 100644
--- a/addons/web/static/src/js/view_tree.js
+++ b/addons/web/static/src/js/view_tree.js
@@ -19,13 +19,12 @@ openerp.web.TreeView = openerp.web.View.extend(/** @lends openerp.web.TreeView#
      * @extends openerp.web.View
      *
      * @param parent
-     * @param element_id
      * @param dataset
      * @param view_id
      * @param options
      */
-    init: function(parent, element_id, dataset, view_id, options) {
-        this._super(parent, element_id);
+    init: function(parent, dataset, view_id, options) {
+        this._super(parent);
         this.dataset = dataset;
         this.model = dataset.model;
         this.view_id = view_id;
diff --git a/addons/web/static/src/js/views.js b/addons/web/static/src/js/views.js
index 46c3f7e6b30..88db848118f 100644
--- a/addons/web/static/src/js/views.js
+++ b/addons/web/static/src/js/views.js
@@ -133,11 +133,19 @@ db.web.ActionManager = db.web.Widget.extend({
         (this.client_widget = new ClientWidget(this, action.params)).appendTo(this);
     },
     ir_actions_report_xml: function(action) {
+        var self = this;
         $.blockUI();
-        this.session.get_file({
-            url: '/web/report',
-            data: {action: JSON.stringify(action)},
-            complete: $.unblockUI
+        self.rpc("/web/session/eval_domain_and_context", {
+            contexts: [action.context],
+            domains: []
+        }).then(function(res) {
+            action = _.clone(action);
+            action.context = res.context;
+            self.session.get_file({
+                url: '/web/report',
+                data: {action: JSON.stringify(action)},
+                complete: $.unblockUI
+            });
         });
     }
 });
@@ -212,8 +220,7 @@ db.web.ViewManager =  db.web.Widget.extend(/** @lends db.web.ViewManager# */{
         if (!view.controller) {
             // Lazy loading of views
             var controllerclass = this.registry.get_object(view_type);
-            var controller = new controllerclass(this, this.element_id + '_view_' + view_type,
-                this.dataset, view.view_id, view.options);
+            var controller = new controllerclass(this, this.dataset, view.view_id, view.options);
             if (view.embedded_view) {
                 controller.set_embedded_view(view.embedded_view);
             }
@@ -232,7 +239,8 @@ db.web.ViewManager =  db.web.Widget.extend(/** @lends db.web.ViewManager# */{
                     unique: true
                 });
             }
-            view_promise = controller.start();
+            var container = $("#" + this.element_id + '_view_' + view_type);
+            view_promise = controller.appendTo(container);
             $.when(view_promise).then(function() {
                 self.on_controller_inited(view_type, controller);
             });
@@ -285,14 +293,14 @@ db.web.ViewManager =  db.web.Widget.extend(/** @lends db.web.ViewManager# */{
             this.searchview.stop();
         }
         this.searchview = new db.web.SearchView(
-                this, this.element_id + "_search", this.dataset,
+                this, this.dataset,
                 view_id, search_defaults);
 
         this.searchview.on_search.add(function(domains, contexts, groupbys) {
             var controller = self.views[self.active_view].controller;
             controller.do_search.call(controller, domains, contexts, groupbys);
         });
-        return this.searchview.start();
+        return this.searchview.appendTo($("#" + this.element_id + "_search"));
     },
     /**
      * Called when one of the view want to execute an action
@@ -729,6 +737,7 @@ db.web.TranslateDialog = db.web.Dialog.extend({
 });
 
 db.web.View = db.web.Widget.extend(/** @lends db.web.View# */{
+    template: "EmptyComponent",
     set_default_options: function(options) {
         this.options = options || {};
         _.defaults(this.options, {
diff --git a/addons/web/static/src/xml/base.xml b/addons/web/static/src/xml/base.xml
index 83ca819b4e6..486dea94671 100644
--- a/addons/web/static/src/xml/base.xml
+++ b/addons/web/static/src/xml/base.xml
@@ -1412,9 +1412,6 @@
         </p>
     </div>
 </t>
-<t t-name="FieldStatus">
-    <div t-att-id="widget.element_id"></div>
-</t>
 <t t-name="FieldStatus.content">
     <ul class="oe-arrow-list">
         <t t-set="size" t-value="widget.to_show.length"/>
@@ -1425,4 +1422,7 @@
         </t>
     </ul>
 </t>
+<t t-name="EmptyComponent">
+    <div></div>
+</t>
 </templates>
diff --git a/addons/web_calendar/static/src/js/calendar.js b/addons/web_calendar/static/src/js/calendar.js
index 7b9fcc3ed33..e590280b933 100644
--- a/addons/web_calendar/static/src/js/calendar.js
+++ b/addons/web_calendar/static/src/js/calendar.js
@@ -8,8 +8,8 @@ QWeb.add_template('/web_calendar/static/src/xml/web_calendar.xml');
 openerp.web.views.add('calendar', 'openerp.web_calendar.CalendarView');
 openerp.web_calendar.CalendarView = openerp.web.View.extend({
 // Dhtmlx scheduler ?
-    init: function(parent, element_id, dataset, view_id, options) {
-        this._super(parent, element_id);
+    init: function(parent, dataset, view_id, options) {
+        this._super(parent);
         this.set_default_options(options);
         this.dataset = dataset;
         this.model = dataset.model;
@@ -30,6 +30,7 @@ openerp.web_calendar.CalendarView = openerp.web.View.extend({
         this.color_map = {};
     },
     start: function() {
+        this._super();
         this.rpc("/web/view/load", {"model": this.model, "view_id": this.view_id, "view_type":"calendar", 'toolbar': true}, this.on_loaded);
     },
     stop: function() {
@@ -344,11 +345,11 @@ openerp.web_calendar.CalendarFormDialog = openerp.web.Dialog.extend({
     },
     start: function() {
         this._super();
-        this.form = new openerp.web.FormView(this, this.element_id, this.dataset, this.view_id, {
+        this.form = new openerp.web.FormView(this, this.dataset, this.view_id, {
             sidebar: false,
             pager: false
         });
-        this.form.start();
+        this.form.appendTo(this.$element);
         this.form.on_created.add_last(this.on_form_dialog_saved);
         this.form.on_saved.add_last(this.on_form_dialog_saved);
     },
diff --git a/addons/web_dashboard/static/src/js/dashboard.js b/addons/web_dashboard/static/src/js/dashboard.js
index a6855894a99..008d03d1548 100644
--- a/addons/web_dashboard/static/src/js/dashboard.js
+++ b/addons/web_dashboard/static/src/js/dashboard.js
@@ -288,13 +288,14 @@ if (!openerp.web_dashboard) {
 }
 openerp.web_dashboard.ConfigOverview = openerp.web.View.extend({
     template: 'ConfigOverview',
-    init: function (parent, element_id) {
-        this._super(parent, element_id);
+    init: function (parent) {
+        this._super(parent);
         this.dataset = new openerp.web.DataSetSearch(
                 this, 'ir.actions.todo');
         this.dataset.domain = [['type', '=', 'manual']];
     },
     start: function () {
+        this._super();
         $.when(this.dataset.read_slice(['state', 'action_id', 'category_id']),
                this.dataset.call('progress'))
             .then(this.on_records_loaded);
@@ -352,6 +353,7 @@ openerp.web.client_actions.add(
 openerp.web_dashboard.ApplicationTiles = openerp.web.View.extend({
     template: 'ApplicationTiles',
     start: function () {
+        this._super();
         var self = this;
         return new openerp.web.DataSetSearch(
                 this, 'ir.ui.menu', null, [['parent_id', '=', false]])
@@ -393,6 +395,7 @@ openerp.web_dashboard.Widget = openerp.web.View.extend(/** @lends openerp.web_da
         this.widget_id = options.widget_id;
     },
     start: function () {
+        this._super();
         return new openerp.web.DataSet(this, 'res.widget').read_ids(
                 [this.widget_id], ['title'], this.on_widget_loaded);
     },
diff --git a/addons/web_diagram/static/src/js/diagram.js b/addons/web_diagram/static/src/js/diagram.js
index 6ddaf26df98..b4aa62fd8f0 100644
--- a/addons/web_diagram/static/src/js/diagram.js
+++ b/addons/web_diagram/static/src/js/diagram.js
@@ -8,8 +8,8 @@ QWeb.add_template('/web_diagram/static/src/xml/base_diagram.xml');
 openerp.web.views.add('diagram', 'openerp.web.DiagramView');
 openerp.web.DiagramView = openerp.web.View.extend({
     searchable: false,
-    init: function(parent, element_id, dataset, view_id, options) {
-        this._super(parent, element_id);
+    init: function(parent, dataset, view_id, options) {
+        this._super(parent);
         this.set_default_options(options);
         this.view_manager = parent;
         this.dataset = dataset;
@@ -20,6 +20,7 @@ openerp.web.DiagramView = openerp.web.View.extend({
         this.ids = this.dataset.ids;
     },
     start: function() {
+        this._super();
         return this.rpc("/web_diagram/diagram/load", {"model": this.model, "view_id": this.view_id}, this.on_loaded);
     },
 
diff --git a/addons/web_gantt/static/src/js/gantt.js b/addons/web_gantt/static/src/js/gantt.js
index 5bf04ff46c7..a045bae64e1 100644
--- a/addons/web_gantt/static/src/js/gantt.js
+++ b/addons/web_gantt/static/src/js/gantt.js
@@ -7,8 +7,8 @@ QWeb.add_template('/web_gantt/static/src/xml/web_gantt.xml');
 openerp.web.views.add('gantt', 'openerp.web_gantt.GanttView');
 openerp.web_gantt.GanttView = openerp.web.View.extend({
 
-init: function(parent, element_id, dataset, view_id) {
-        this._super(parent, element_id);
+init: function(parent, dataset, view_id) {
+        this._super(parent);
         this.view_manager = parent || new openerp.web.NullViewManager();
         this.dataset = dataset;
         this.model = dataset.model;
@@ -32,6 +32,7 @@ init: function(parent, element_id, dataset, view_id) {
     },
 
     start: function() {
+        this._super();
         this.rpc("/web/view/load", {"model": this.model, "view_id": this.view_id, "view_type": "gantt"}, this.on_loaded);
     },
 
diff --git a/addons/web_graph/static/src/js/graph.js b/addons/web_graph/static/src/js/graph.js
index f35e6ab112c..2a493b89166 100644
--- a/addons/web_graph/static/src/js/graph.js
+++ b/addons/web_graph/static/src/js/graph.js
@@ -17,8 +17,8 @@ QWeb.add_template('/web_graph/static/src/xml/web_graph.xml');
 openerp.web.views.add('graph', 'openerp.web_graph.GraphView');
 openerp.web_graph.GraphView = openerp.web.View.extend({
 
-    init: function(parent, element_id, dataset, view_id) {
-        this._super(parent, element_id);
+    init: function(parent, dataset, view_id) {
+        this._super(parent);
         this.view_manager = parent;
         this.dataset = dataset;
         this.dataset_index = 0;
@@ -33,6 +33,7 @@ openerp.web_graph.GraphView = openerp.web.View.extend({
         this.$element.hide();
     },
     start: function() {
+        this._super();
         return this.rpc("/web_graph/graphview/load", {"model": this.model, "view_id": this.view_id}, this.on_loaded);
     },
     on_loaded: function(data) {
diff --git a/addons/web_kanban/static/src/js/kanban.js b/addons/web_kanban/static/src/js/kanban.js
index db9473b4ff5..8aa8e9f3c38 100644
--- a/addons/web_kanban/static/src/js/kanban.js
+++ b/addons/web_kanban/static/src/js/kanban.js
@@ -4,8 +4,8 @@ var QWeb = openerp.web.qweb;
 QWeb.add_template('/web_kanban/static/src/xml/web_kanban.xml');
 openerp.web.views.add('kanban', 'openerp.web_kanban.KanbanView');
 openerp.web_kanban.KanbanView = openerp.web.View.extend({
-    init: function (parent, element_id, dataset, view_id, options) {
-        this._super(parent, element_id);
+    init: function (parent, dataset, view_id, options) {
+        this._super(parent);
         this.set_default_options(options);
         this.dataset = dataset;
         this.model = dataset.model;
@@ -26,6 +26,7 @@ openerp.web_kanban.KanbanView = openerp.web.View.extend({
         }
     },
     start: function() {
+        this._super();
         return this.rpc("/web/view/load", {"model": this.model, "view_id": this.view_id, "view_type": "kanban"}, this.on_loaded);
     },
     on_loaded: function(data) {
diff --git a/addons/web_mobile/static/src/js/chrome_mobile.js b/addons/web_mobile/static/src/js/chrome_mobile.js
index 2b9d8600fef..b52b4642b67 100644
--- a/addons/web_mobile/static/src/js/chrome_mobile.js
+++ b/addons/web_mobile/static/src/js/chrome_mobile.js
@@ -131,9 +131,9 @@ openerp.web_mobile.Shortcuts =  openerp.web.Widget.extend({
         id = $shortcut.data('menu');
         res_id = $shortcut.data('res');
 //        this.header = new openerp.web_mobile.Header(this, "oe_header");
-        this.listview = new openerp.web_mobile.ListView(this, "oe_list", res_id);
+        this.listview = new openerp.web_mobile.ListView(this, res_id);
 //        this.header.start();
-        this.listview.start();
+        this.listview.appendTo($("#oe_list"));
         jQuery("#oe_header").find("h1").html($shortcut.data('name'));
     }
 });
@@ -252,8 +252,8 @@ openerp.web_mobile.Secondary =  openerp.web.Widget.extend({
         var $menu = $(ev.currentTarget);
         id = $menu.data('menu');
         if (id) {
-            this.listview = new openerp.web_mobile.ListView(this, "oe_list", id);
-            this.listview.start();
+            this.listview = new openerp.web_mobile.ListView(this, id);
+            this.listview.appendTo("#oe_list");
         }
         jQuery("#oe_header").find("h1").html($menu.data('name'));
     }
diff --git a/openerp-web.py b/openerp-web.py
index f822a389642..19fb5cd84b4 100755
--- a/openerp-web.py
+++ b/openerp-web.py
@@ -37,6 +37,9 @@ optparser.add_option("--log-level", dest="log_level",
                      default='debug', help="Log level", metavar="LOG_LEVEL")
 optparser.add_option("--log-config", dest="log_config",
                      default='', help="Log config file", metavar="LOG_CONFIG")
+optparser.add_option('--multi-threaded', dest='threaded',
+                     default=False, action='store_true',
+                     help="Use multiple threads to handle requests")
 
 import web.common.dispatch
 
@@ -55,5 +58,5 @@ if __name__ == "__main__":
 
     werkzeug.serving.run_simple(
         '0.0.0.0', options.socket_port, app,
-        use_reloader=options.reloader, threaded=True)
+        use_reloader=options.reloader, threaded=options.threaded)