sksamuel/jqm4gwt — pull request #44 by slavap (2013-08-19 18:15:27+00:00)
Title: addPageHandler() added to allow register handlers on page events (hide, show, ...).

That functionality is needed in case of aggregation instead of inheritance.
Example:
```java
page.addPageHandler(new JQMPageEvent.DefaultHandler() {
@Override
public void onShow(JQMPageEvent event) {
super.onShow(event);
loadData();
}});
```