Autocomplete: changed menu activated function to check if the offset …

…is greater than or equal the height. Fixed #5923 - autocomplete: Scrolling with the keyboard sometimes does not show the item (Chrome)

ui/jquery.ui.autocomplete.js

@@ -429,7 +429,7 @@ $.widget("ui.menu", {
 				elementHeight = this.element.height();
 			if (offset < 0) {
 				this.element.attr("scrollTop", scroll + offset);
-			} else if (offset > elementHeight) {
+			} else if (offset >= elementHeight) {
 				this.element.attr("scrollTop", scroll + offset - elementHeight + item.height());
 			}
 		}