[FIX] board: correctly pass options arg to do_action

The dashboard instantiates an action manager for each view it has to display.
It then replaces the do_action() function of those action managers by its own
one, forgetting to pass the second argument 'options'. Thus, when do_action was
called by a view of the dashboard (e.g. a button in a list view), it was called
without the options.

addons/board/static/src/js/dashboard.js

@@ -225,9 +225,7 @@ var DashBoard = form_common.FormWidget.extend({
         this.action_managers.push(am);
         am.appendTo($action);
         am.do_action(action);
-        am.do_action = function (action) {
-            self.do_action(action);
-        };
+        am.do_action = this.do_action.bind(this);
         if (am.inner_widget) {
             var new_form_action = function(id, editable) {
                 var new_views = [];