Add function for determining stem of file name.
Renamed UV3D class to "UniformVolume".

"volume" implies 3 dimensions, making the previous name redundant.
Changes required by change of UniformVolume class name.

Related to f2a189d65d986fd7f072e01457fbaf6f7a40e69e.
Add multi-volume input functionality.

Initial code changes.  QGenRecon compiles.  Not tested yet.
Debug multi-volume input.

Fix runtime errors discovered during debugging.
Add multi-volume input functionality to VOL input.
Add check for "_BigEndian" in volume name.
Merge branch 'master' into dev