Build 457 is released.

 1. Open DICOM folder:  fixed crash when the folder is empty. Provided diagnostic.

2. Fixed crash when multi-frame file is invalid. Provided diagnostic.

3. Corrected defect:  when the ROI or other layer with different resolution from base is added, now ALL spatial information is properly copied to the new layer.

4. Fixed hard to find defect:  when function FindLayerContainingName was called, the whole name of the layer including PATH was checked. Corrected: only the name title is checked, because the path contained the searched name (like Atlas)

5. Fixed defect when loading zip-compressed headers embedded in FVX files.