Build 274 is released.

1. Algorithmic work for Lung GRASP 4D fully automatic segmentation.  Working on 5 cases of Deep+Normal breathing trying to achieve a good result so lung spirometry measurements can be performed.

2.  Fixed the memory leak in Bical function.

3.  Corrected the allocated size of each memory block for Volume slice, so it is no more than required.  It also resulted in smaller system memory use and accurate resource usage reporting.

4.  BiCal with  "Output Field" option now otput "double precision Real" volume.

5.  Fixed defect when volume is converted to isotropic for processing and then back to original resolution, so there are no void voxels on the fringe.

6.  BiCal\EdgeWave front age calculation:  fixed defect occurring in 1-voxel margins of the volume.  This was resulting in unpleasant margin artefacts in BiCal.

7.  Fixed memory leak in DetectRelativeRidge function.

8.  Detected and removed all memory leaks from Lung\Trachea 4D segmentation.

9.  Optimized speed of  MemVol -> SetBox -> (MemVol) function which is the basis of many other
functions.  This reduced the time of Lung segmentation results  construction (not segmentation itself) x3 times.

10.  Parallelized CreateBasicDicomHeader function which is basis of many functions on UI.