renamed "Camera" scene to "CameraTestScene"

This resolves the name conflict with the interface called "Camera"
Updated image of Camera.png

The version produced by CameraTestScene is actually much brighter.
Merge branch 'skeleton'

Conflicts:
	rt/src/rt/testscenes/Camera.java
	rt/src/rt/testscenes/CameraTest.java
	rt/src/rt/testscenes/CameraTestScene.java