more sample tiles with ingenious "daniel"-based naming scheme for
testing purposes.
git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@139 542714f4-19e9-0310-aa3c-eee0fc999fb1
Modified TileManager to store the height of a tile in the Tile
object's member data when the tile is initially created since we
would like to be able to reference it speedily.
git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@63 542714f4-19e9-0310-aa3c-eee0fc999fb1