Code on ImageJPlugins
NPUp

MathCommons fitting tool integrated.
AIF class with differents kind of voxels
Speed improvements
More
Merge branch 'master' of https://github.com/HGGM-LIM/imagej-perfusion-plugin

Conflicts:
	.gitignore
	ImageJPlugins/src/AIF.java
	ImageJPlugins/src/Esquema_.java
	ImageJPlugins/src/GammaFitter.java
	ImageJPlugins/src/MainFrame.java
	ImageJPlugins/src/MathAIF.java
	ImageJPlugins/src/MathUtils.java
	ImageJPlugins/src/VoxelT2.java
	ImageJPlugins/src/myGammaFun.java