Merge branch 'bug-9081-Restructure-manual-segmentation-tools'
Conflicts:
Modules/MitkExt/Interactions/mitkContourTool.cpp
Modules/MitkExt/Interactions/mitkCorrectorTool2D.cpp
Modules/MitkExt/Interactions/mitkPaintbrushTool.cpp
Modules/MitkExt/Interactions/mitkRegionGrowingTool.cpp
Modules/MitkExt/Interactions/mitkSegTool2D.cpp
Modules/MitkExt/Interactions/mitkSetRegionTool.cpp