file transfer: when initiator cancels the transfer before it starts, the invitation icon remains in the frame

[tomeu]

The invitation icon in the initiator side should be removed.

Eben, please comment.

[eben]

Seems clear to me. Canceling the transfer should always eliminate the associated transfer icon.

[eben]

I should make that more clear. Canceling the transfer should always remove the transfer icon for the child who canceled it. The other participant in the transfer should simply be notified that the transfer was canceled, with the option to dismiss the transfer icon.

In fact, there should be a notification at the other end to alert the child of the cancellation (or the completion!) of a transfer.

[tomeu]

Fixed by  http://git.sugarlabs.org/projects/sugar/repos/mainline/commits/aaa85c82