DnD: Allow dndItems that are not a direct descendent of Source

[guest]

Drag and drop only works when the dnd items are direct children of a dnd Source. Here is a slight modification of part of the test_dnd.html file that shows the non working behaviour:

<div dojoType="dojo.dnd.Source" jsId="c2" class="container">

<div>

<div class="dojoDndItem">Item <strong>X</strong></div> <div class="dojoDndItem">Item <strong>Y</strong></div> <div class="dojoDndItem">Item <strong>Z</strong></div>

</div>

</div>

[Eugene Lazutkin]

Need more info in the ticket on possible use cases.

[guest]

One case where I'd like to use drag and drop is a table which contains items some of which can be moved around. Here is a simplified version of the markup:

<table dojoType="dojo.dnd.Source"><tbody>
 <tr> 
  <td>
   <div class="dojoDndItem"> Item 1</div>
   <div> Item 2</div>
   <div class="dojoDndItem"> Item 3</div>
  </td>
  <td>
   <div class="dojoDndItem"> Item 4</div>
  </td>
 </tr>
 <tr>
  <td>
   <div class="dojoDndItem"> Item 5</div>
   <div class="dojoDndItem"> Item 6</div>
  </td>
 </tr>
</tbody></table>

[bill]

Move all milestone 1.1 tickets to 1.2, except for reopened tickets and tickets opened after 1.1RC1 was released.

[Eugene Lazutkin]

Duplicate of #6847. Already implemented.