Modified string/bytes check in request()
Modified string/bytes check in request()

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