Rename displayed dataset name.
Rename displayed dataset name.

As per Andre's request; I guess EZRT is a department or something,
and doesn't make much sense as the name of a file format.

git-svn-id: 353be9ac11a1e711854a13efcc2fc17d9d6b83e7@1339 c36c8488-0289-0348-9b64-b301f74bd9a7

BlueBrain/Tuvok,BlueBrain/Tuvok,BlueBrain/Tuvok