ENH: ModelToModelDistance matches 3DMeshMetric format in vtk files when using VTK filter

-Scalar array is named "Distance" by the VTK filter "vtkDistancePolyDataFilter"
-Scalar array is renamed "Signed" if the computed is signed
-Scalar array is renamed "Absolute" if the computed distance is not signed
-An additional and constant field is added to the vtkPoyData and is called "Original"
Merge pull request #614 from fbudin69500/update-ModelToModelDistance

ENH: ModelToModelDistance matches 3DMeshMetric format in vtk files when ...
Update TCIA browser to include new enhancements: download in background and multi-selection for download
Merge pull request #616 from mehrtash/update-TCIABrowser

Update TCIA browser to include new enhancements
Update XNATSlicer.s4ext
ENH: Added PyDevRemoteDebug extension for easy connection to the PyDev remote debugger
Merge pull request #618 from MokaCreativeLLC/update-XNATSlicer

Update XNATSlicer.s4ext
Merge branch 'master' of github.com:Slicer/ExtensionsIndex
Updated PyDevRemoteDebug: fixed homepage and icon URLs
Merge pull request #617 from SlicerRt/update-PyDevRemoteDebug

ENH: Added PyDevRemoteDebug extension for easy connection to PyDev
Update XNATSlicer.s4ext
Merge pull request #619 from MokaCreativeLLC/update-XNATSlicer

Update XNATSlicer.s4ext
ENH: Change the selection method from checkboxes to row selection for consistency
Added Breach Warning module.
Fixed website address.
Merge pull request #622 from ungi/update-SlicerIGT

Added Breach Warning module to the SlicerIGT extension superbuild
Merge pull request #620 from mehrtash/update-TCIABrowser

ENH: Change the selection method from checkboxes to row selection for co...
Update TCIA browser to include selection in all levels and test
Merge pull request #623 from mehrtash/update-TCIABrowser

Update TCIA browser to include selection in all levels and test
Changed name of ThresholdModel module to ScarVisualization, and fixed build error for CMRToolkit Wizard module. Updated documentation website URL.