Fix and simplify the float quantization expansion.
Fix and simplify the float quantization expansion.

Must have tested with the pre-quantized data yesterday, or
something... it was blatantly choosing the base template instead
of the specializations in the previous commit.

git-svn-id: 353be9ac11a1e711854a13efcc2fc17d9d6b83e7@1388 c36c8488-0289-0348-9b64-b301f74bd9a7

BlueBrain/Tuvok,BlueBrain/Tuvok,BlueBrain/Tuvok