[FIX] web_responsive: Chrome Slow Scrolling

* Update to iScoll bleeding edge to fix #741

web_responsive/static/src/js/web_responsive.js

@@ -109,7 +109,10 @@ odoo.define('web_responsive', function(require) {
                         'transform', 'matrix(1, 0, 0, 1, 0, ' + transform + ')'
                     );
                 };
+                // Scroll probe aggressiveness level
+                // 2 == always executes the scroll event except during momentum and bounce.
                 this.iScroll.options.probeType = 2;
+                // Set options because
                 this.iScroll.on('scroll', $.proxy(onIScroll, this));
             });
             this.initialized = true;