render sprites and animations anywhere in the frame for those times when you
just need to draw outside the lines.
The actual MediaOverlay isn't done yet, but all the refactoring to support it
is done, so the rest should be easy. In theory this shouldn't break anything
(like the Yohoho build), but we're about to find out.
git-svn-id: svn+ssh://src.earth.threerings.net/nenya/trunk@112 ed5b42cb-e716-0410-a449-f6a68f950b19
Michael Bayne