"Landmark registration with autofocus" is changed to "Landmark registration + Voxel similarity", execution crash was fixed.

"View TAC" dialog:   added a new option for 2D\3D apperture of the mouse cursor to be used when the TAC is displayed.

"View TAC" dialog box:  added the "Voxel Radius" parameter so the TAC could be averaged over the cubic vicinity of the cursor.  This results in seeing smoother TACs. Parallelized to work smoothly over the volumes with the hight # of timepoints.

"Register using Landmarks" dialog:  fixed several problems in specifying the name of the Transformation  .vtf file.