Added javadoc to example.
Added (commented) code for issue #55
Added labeled marker as processing example
Added performance tests (different renderings of tens of thousand dots)
Added 3D examples (with correct 3D mouse picking)
Added examples for temporal marker tutorial.
Added centroid country marker example.
Added sprite image for performance test.
Added toxic libs to lib-extern (Mechanism for external libs needs to be cleaned for dist)
Added toxilibs into classpath (for Eclipse)
Added test app for zoom restriction / tweening bug.