remove some dead code

git-svn-id: https://gforge.sci.utah.edu/svn/scio@2209 c36c8488-0289-0348-9b64-b301f74bd9a7
Workaround an issue loading aspects with nrrd data.

Also add a bunch of debugging outputs, some checks, and an assert
or two... took me forever to figure out what was even wrong.

git-svn-id: https://gforge.sci.utah.edu/svn/scio@2210 c36c8488-0289-0348-9b64-b301f74bd9a7
Fix subtle bug converting UVFs that introduced the other day (oops).

I tried to simplify by relying on the shared_ptr to do the
cleanup, but there was an important 'Close' in there, since the
file is re-opened before the function ends (and thus the
shared_ptr cleans up).  Without the close, there's a race between
the OS caching the write and us reading the file's data.

git-svn-id: https://gforge.sci.utah.edu/svn/scio@2211 c36c8488-0289-0348-9b64-b301f74bd9a7