Make minmax tests run last.
Make minmax tests run last.

JPEG/DICOM tests print out annoying warnings from the JPEG library
which are ignorable; better to get the output we care about last.

git-svn-id: 353be9ac11a1e711854a13efcc2fc17d9d6b83e7@1233 c36c8488-0289-0348-9b64-b301f74bd9a7

BlueBrain/Tuvok,BlueBrain/Tuvok,BlueBrain/Tuvok