method viewsInTab added in medTabbedViewContainers
mutualise thumbnail generation code.
images are now linked by position and not by slice number
mutualise intern state of toolbox toolbar and layer widgets for interactors, create toolbars
affine some graphic stuff, fix unhighlight container bug after drag'n drop in existing container.
add sliders for window and level parameter
bring back slicing slider (to slice through the first layer only like before), use cubin interpolation method for itk data instead of linear.
some cleaning
enabling itk navigator for 4d images
update slider value when view2d position change.
vtkDataMeshNavigator added (for depth peeling)
Removed v3dView from the plugins
Removed medVtkViewSignalsEmitter by declaring medVtkView 'friend' to
its observer, removed lock/unlock methods.
Unify vtkDataMesh and its readers/writers in one plugin
Unify itkDataTensorImage and its readers/writers in one plugin
Unify itkDataSHImage and its readers/writers in one plugin
Unified itkDCMTKDataImageReader and itkDataImage{Reader,Writer} into itkDataImage plugin
Remove empty COPYING.txt and README.txt files
Renamed and cleaned up v3dData into medVtkFibersData
Removed medPatientSelectorToolBox, unused anymore