Build 271 is released.

1. Added the "3D Processing" option to the  Segment>Detect Bright ridges  dialog box.

2. Implemented "3D Processing" option in the Volume>Smooth  dialog box.

3. VolumeSmooth in 2D:  implemented a pure, fully parallel 2D function.  It is D-times faster,
where D is the diameter of the apperture than the previous version.  D can be quite large  20-50 in
some segmentation scenarios.

4.  Developed morphological segmentation "Unlump ROI" procedure.
Applied to Lungs ROI.  When lungs are segmented, usually both lungs ROI is lumped together and to other small objects.  Unlump procedure runs and then we take 2 largest connected components.

5. Implemented an initial prototype of fully automatic Lung segmentation from MRI
GRASP-4D exam.

6.  Implemented the Volumetric Time Profile dialog.

7.  Implemented the Lung Static split based on   ROI Union algorithm.  Applied the volumetric time profile dialog to it.

















8.  Optimized the VolumeSmooth function in 2D with  Appeture weights = constant.  Used 256-bit AVX2 instructions for array  Multiply\Add

9.  Introduce the Roi Compression switch ON\OFF which can be called withing heavy computation procedure to substantially speed up calculation, without involving Users input into  User Interface Options.

10.  In multiprojection view with the synchronized cursor:  allow now to scroll through time synchroniously.

11. VolumeSmooth function: added the processor test for AVX2 capabilities.

12.  Change to menu item Volume>Change Volume Type function.  Added ROI->to->Integer conversion UI item.

13.  Implemented first prototype of fully automatic trachea segmentation from 4D MRI GRASP.

14.  Added the spirometry measures {FEV1,FVC} to Volumetric profile curve dialog.

15.  Implemented a new scheme to reduce the DICOM header size stored with each slice.  Space reduction is x2.

16. Implemented a single dialog to specify 3 integer values. This serves as the dialog for Lung splitting at the moment.