extra DOM events for DataTable (#1723)

* extra DOM events for DataTable

- support for ‘row-click’ DOM event (bubbling)
- support for ‘row-dblclick’ DOM event (bubbling)
- DataRowEvent exposes ‘sender’ property to simplify access to
component from within handlers
- readme and test updates

* fix unit tests

demo-shell-ng2/app/components/activiti/activiti-demo.component.ts

@@ -288,4 +288,12 @@ export class ActivitiDemoComponent implements AfterViewInit {
         this.activitiprocessfilter.selectFilter(null);
     }
 
+    onRowClick(event) {
+        console.log(event);
+    }
+
+    onRowDblClick(event) {
+        console.log(event);
+    }
+
 }