closes #280 bugfix on writting to sderr on verbose Test cache.
closes #280 bugfix on writting to sderr on verbose Test cache.

Billups/TileStache,jbants/TileStache,jbants/TileStache,Billups/TileStache,Billups/TileStache,TileStache/TileStache,jbants/TileStache,TileStache/TileStache,TileStache/TileStache