Feature Req for STA App: undo deletion

```

It would be nice to be able to undo a delete, 

Possible solution: add a 'trash-bin' task, that is not in the clustering 
algorithm. Then 'delete' would be 'move to trash', and there could be a special 
button for 'trash', to actually delete (perhaps put this button in settings). 

```

Original issue reported on code.google.com by `sjh...@gmail.com` on 12 Apr 2013 at 2:06
