test scene images
instancing test scene
added triangle and instancing test scenes; added StaticVecmath utility
class
test scene images
pathtracing test scene and images
Merge branch 'master' of https://github.com/mzwicker/Rendering-Algorithms-2014-Skeleton into importance_sampling

Conflicts:
	output/testscenes/Instancing.png
	rt/src/rt/StaticVecmath.java
	rt/src/rt/testscenes/InstancingTest.java
	rt/src/rt/testscenes/TriangleTest.java

and some adaptions to my framework
renamed png for easier handling
more adaptions to path tracing scene
first try at path tracing