Patch for deleting tiles when commands are deleted from the undo stack

[Boudewijn Rempt]

On Friday 19 March 2010, Cyrille Berger wrote:
> Hello,
> 
> Currently when KisTransaction is deleted, the corresponding tiles are not
> removed and are kept in memory. That patch takes care of deleting the
> tiles.
> 
> As far as I can see it works, and the test that were successful are still
> successful (and the others still failing).

Yesterday I was trying to fix KisTransactionTest -- didn't succeed, I don't 
know why redo works in krita but not in the test -- but the test did end. With 
your patch, after failing, KisTransactionTest hangs in a lock in 
KisTileHashTabletraits::deleteTile in KisMementoManager line 301.

-- 
Boudewijn Rempt | http://www.valdyas.org