Change the required CMake version to 2.8.10
Merge pull request #179 from rdebroiz/178-CMake_version_required

Change the required CMake version to 2.8.10
Fix registration crash with 4d data
edit to previous commit
Remove offending backslash
Merge pull request #199 from mikejbuckingham/working

fix itkProcessRegistration crash with 4d input