factory-south-ubuntu: Update CMake version from 2.8.10.2 to 2.8.12.2

Used the following command:

  ./cdashly.py replace "factory-south-ubuntu*" "/home/kitware/Dashboards/Support/cmake-2.8.10.2-Linux-i386" "/home/kitware/Dashboards/Support/cmake-2.8.12.2-Linux-i386" --apply
factory-south-win7: Update CMake version from 2.8.10.2 to 2.8.12.2

Used the following command:

  ./cdashly.py replace "factory-south-win7*" "CMake 2.8.10.2" "CMake 2.8.12.2" --apply