Revert "Regenerate without hidden CollectionWidget events (3)"

This reverts commit 32c3180.

api-reference/10 UI Components/CollectionWidget/1 Configuration/onItemDeleted.md

@@ -26,5 +26,8 @@ The removed item's data.
 ##### field(e.itemIndex): Number | Object
 The removed item's index.
 
+##### field(e.model): Object
+Model data. Available only if you use Knockout.
+
 ---
 Note that the **itemDeleted** event is raised only if an item is deleted using the appropriate method of the UI component or end-user interaction. If you delete an item from an observable array passed to the **dataSource** or **items** property, the UI component entirely reloads the items array without raising the **itemDeleted** and **itemDeleting** events.

api-reference/10 UI Components/CollectionWidget/1 Configuration/onItemDeleting.md

@@ -29,6 +29,9 @@ The data of the item to be removed.
 ##### field(e.itemIndex): Number | Object
 The item's index.
 
+##### field(e.model): Object
+Model data. Available only if you use Knockout.
+
 ---
 You can cancel item deletion by setting the handler parameter's **cancel** field to **true**. This field also accepts a Promise (<a href="http://api.jquery.com/Types/#Promise" target="_blank">jQuery</a> or <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise" target="_blank">native</a>), which enables you to perform an asynchronous action before an item is deleted.
 

api-reference/10 UI Components/CollectionWidget/1 Configuration/onItemReordered.md

@@ -29,6 +29,9 @@ The reordered item's data.
 ##### field(e.itemIndex): Number | Object
 The index of the item after reordering. This field holds the same value as **toIndex**.
 
+##### field(e.model): Object
+Model data. Available only if you use Knockout.
+
 ##### field(e.toIndex): Number
 The item's current index.