Update version 2.1.0 -> 2.2.0
Activate git ITK checkout and patching as with VTK.
Define itk tag correctly for the update target.
Use Itk 4.5.2
Update the version of ITK.
Remove hard-coded ITK and VTK versions
Patch ITK to remove rpath on Mac, patches also get applied when source is downloaded
Merge pull request #47 from ocommowi/itk-patch

Add ITK patch for Mac, solve bug in superproject
Add flag in find_package to disable braindead CMake GUI recent projects
Merge various launchers scripts. Slightly reorganize things.
Force CMake to use the paths provided, otherwise all system paths are prioritary, and we pick the wrong version.
Add the superproject in the cpack installed projects.
Merge various launchers scripts. Slightly reorganize things.
Add the superproject in the cpack installed projects.
DTK tools should be built for mac, removing option
Handle mac launcher script (binary path is different)