fixed filenames in basic scenes. added normalization by 1/pi to diffuse
material. changed camera interface to take a single sample
java doc
Merge pull request #1 from panmari/master

Some minor fixes for the framework
Changed architecture such that light sources are derived from
LightGeometry, which implements Intersectable. Adapted all examples and
integrators.
Merge remote-tracking branch 'gitub/master'
java doc
javadoc
javadoc
added clarifying comment
fixed bug with non-square images
Merge branch 'master' of https://github.com/mzwicker/Rendering-Algorithms-2014-Skeleton

Conflicts:
	rt/src/rt/Main.java
	rt/src/rt/cameras/FixedCamera.java