MR4D (from combined PET-MR exam):
Verifying the "K-trans model" = {K-trans, Ve}.  Adding a corresponding subtest to ABT....

Registration defect  fixed:  while registering two longitudal MPRAGE images, the registration crashes if one of 3 measures is used:  {SignalDiff, CrossCorrelation, RatioUniformity}


Added the ABT subtest for  sag1.im<->sag4.im registration for 5 additional measures:
  {SignalDiff, CrossCorrelation, RatioUniformity,MI,MI-norm}

Fixed the volume overlay problem, when 2 brain volumes with the resolution difference around
1e-4 were not able to overlay.

PET-MR  registration:  Removing optional  "PET resolution\Best resolution" option as it always to the best resolution now due to the new codec.