I've done applyAddGaussianNoise, applyMulRayleighNoise and
applyMulExponentialNoise. You can't choose the parameters yet.
added tiny comments
Merge branch 'master' of https://github.com/hataanvnu/ImageProcess

Conflicts:
	src/ar/edu/itba/imageprocess/MainController.java
	src/ar/edu/itba/imageprocess/MenuPane.java
put filters inside the Filters class