I don't really want to talk about it. *Gulp*. Anyway, you define
multiple animations on either the animation modifier or the textures
panel. The UIs have all been unified. By default, you have an "(Entire
Animation)" that represents the old single animation. You may create
additional sub-animations over an arbitrary range of keyframes. Once
other animations are defined, the "(Entire Animation)" may be deleted.
However, if all subanimations are deleted, the "(Entire Animation)" will
resurect itself with its last known settings.
Behavior change: object animations (except for fixed cameras) now
REQUIRE an animation modifier be attached to export. It is now an error
to attach an animation modifier to any camera except for a fixed camera.
