#35 Camera translations don't work right...

[Bryan Wagstaff]

In the latest release (0.0.1.3), the camera sample
needs to lines to render properly:

---
anchor.render(vp);
sg::SCENE::render(vp,scene);
---

The first line is the one that moves the camera, the
second is the one that draws the scene.

I believe this is not correct. anchor is an sg::BODY,
which may have multiple cameras on it. The scene
object contains a reference to the anchor object.

It is confusing which camera object should be used for
the point-of-view, especially if there are multiple
camera objects defined.

bryanw