[IMP] Web et al.: ControlPanel extracted from ViewManager

The ControlPanel is still instantiated by the ViewManager.

Changes details:
* web: views.js:
    Code related to views header is extracted from the ViewManager
    to a new Widget named ControlPanel.

    Also uses the headless flag to tell the inner view not to put
    its buttons (use case: kanban) or pager (use case: list) in the
    header as it is hidden.
* web: view_form.js, base.xml:
    Uses the headless flag at initialization of the One2ManyViewManager
    widget instead of extending the ViewManager template (which doesn't
    handle the header anymore).

* web: view_list.js:
    Test on this.options.$pager instead of this.options.$buttons
    when dealing with pager.

    Note: the behavior for list view is unchanged and has a bug.
    If there are more then 80 records to display, only the 80th
    first are display, and as there is no pager, there is no way
    to see the remaining ones. A fix for this would be to use a
    light ControlPanel in One2Many views as well. With this,
    there won't be duplicated .oe-'view'-buttons/sidebar/pager
    anymore.

* web: view_graph.js, view_pivot.js:
    Only render buttons in non-headless mode

* web_dashboard: dashboard.js:
    Fix some references that were broken with ControlPanel extraction

* web_view_editor: web_view_editor.js:
    Extend ControlPanel instead of ViewManager

* Changes in selector of ControlPanel elements in several addons:
    * base_import
    * mail
    * web

1 files changed, 0 insertions, 3 deletions

diff --git a/addons/web/static/src/js/action_manager.js b/addons/web/static/src/js/action_manager.js
index efc617c4af2..61686dc4e7e 100644
--- a/addons/web/static/src/js/action_manager.js
+++ b/addons/web/static/src/js/action_manager.js
@@ -142,9 +142,6 @@ var ActionManager = Widget.extend({
                 w.destroy();
             });
             self.inner_widget = _.last(self.widgets);
-            if (self.inner_widget.display_breadcrumbs) {
-                self.inner_widget.display_breadcrumbs();
-            }
             if (self.inner_widget.do_show) {
                 self.inner_widget.do_show();
             }