Refactored TileSet into TileSet, UniformTileSet, SwissArmyTileSet and
ObjectTileSet.
Removed dependence on the "root" system property from the
XMLSceneRepository (things either pass in full paths now or input streams
fetched via the resource manager).
Removed MisoUtil.createImageManager() because everyone does that by hand
now (which is good because some non-Miso things were using MisoUtil for
that).
I think that's it, but if there was something else, don't blame me. Blame
the monkeys.
git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@608 542714f4-19e9-0310-aa3c-eee0fc999fb1
Michael Bayne
feb2a2633e