[Wishlist] Allow file operations like rename/delete in "Open/Save file" dialog

Hi,

I believe this is a nautilus-related request.

It would be a real time saver if one could rename or delete files/folders from within the open/save file dialogs.
Some typical situations where this is very useful:

  * you want to change the name of a folder in which you want to save the file. Possibly because have just created this folder from the very same dialog and made a typo in the name;
  * you want to cleanup the destination folder from obsolete files before saving;
  * you want to keep a backup of an existing file in the same folder, by renaming it before saving the new file.

Windows offers this feature for as far as I can remember. It is not to try replicate behaviour, but it is a really nice feature, which does not impact the GUI look:

  * 2 extra entries in the contextual menu
  * 2-3 key bindings (F2, Delete, and Shift Delete)

which already exist in plain Nautilus.

Thank you.

Bests,
Renaud