Added corrections to the general registration algorithm for URAL measure:

a) Gradient withing URAL-radius to the Volume boundaries are set to 0 to avoid
introducing non-existing features that might steer registration.

b) If one of the timepoints in registration is binary (as sometimes in hybrid scenario), the URAL_NORM=Linear is always chosen for that specific timepoint independent of what
norm is specified by the user.

FireVoxel Build 155 is released.

In 3D volume DICOM load, increased the interslice distance tolerance from 1e-4 to 1e-3. This allows to load A.R. volumes without warning messages.

FireVoxel Build 154 is released.

1. Added the BrainCT  workflow (MainMenu>Applications).

Added new function "BrainCT>Segment Intracranial cavity".

2. EdgeWave dialog:  corrected a major UI error.  When no seeds are present, the logic of selecting the Connected Component choices (radiobuttons) was damaged.

3. Corrected interface and initial parameters to process the CT-brain scans without leaks.

4. Toft's model (#8):  re-arranged the optimization variables to improve the solution bounds.

5.  Introduced a “Balanced solution” concept for parametric fitting and Toft’s model in particular.

6. Tofts modified model (k-trans,Ve,Va):  implemented changes to model similar to the regular model.

7. Corrected defect:  Unable to "Crop 4D All Layer" \ "Crop 4D Active Layer" using the vector ROI.

8. Added ABT subtest for "Tofts modified (K-trans,Ve,Va)" model.

9. Fixed major bug in registration of real-valued volumes (=PET).