Ok FPSCounter finished

Check it out on the cvs. And please care to read my javadoc - I explain my algorithm there.
*It would be too much to post it here againwhat fps-curves do you get?
I've changed SphereCollisionTest and OctTreeSpaceTest to use my new fps measuring method.
All other tests using TestingWorld will also use it, but they will only log and use the current fps for step sizes, but never print statistics.
Ohh and I changed my X-Axis to time instead of the frames. I think it's better this way, because then you can see analogies to the things that happened on the scene better. (I bet your fps isn't that low, that you actually can count the frames he?)