to their nearest compass direction instead of the wacky way it did before.
Also added getFineDirection() along with rotateCW() and rotateCCW() to
rotate through (fine) directions (though coarse directions can be rotated
as well, simply by always requesting two ticks of rotation). Also wrote
some test code to make sure everything works.
git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@1545 542714f4-19e9-0310-aa3c-eee0fc999fb1
Michael Bayne