FireVoxel Build 131 is released.

1. AutoFocus 3D\4D registrations: parallelization was removed from Finetune, in non-MI measures. This led to a 18% speed up on 4D liver registration on Hersh's data.
2. Reimplemented the principal  gradient matching procedure of Registration, using the AVX2 latest INTEL 256-bit instructions.
3. Achieved further improvement of speed in URAL-Registration core procedure (affects 3D\4D).  This was done by further usage INTEL AVX intrinsics (128-bit vectorization commands).
4. Modified the Run-length representation of  Gradient fields used in 3D\4D registration to make more efficient use of memory and allocating and individual buffer for each image line  instead of one large buffer for the whole image.  
5. Liver DCDI:  Added the quick reference menu item for "Applications>Liver DCDI>Modelling".  This brings up the parametric modelling dialog box with the appropriate model active.
6.  Raised the "Optimization depth" Model control parameter to 10.
7.  Corrected the output units of the Liver DCDI model.  This does not change the fit, but outputs correct numbers consistent with the Sourbron's paper
8. Parametric Models:  when the "Process ROI as a single TAC" mode is used, before the  fitting curve is displayed,  all the requested parameters are displayed in a separate dialog with the appropriate units.