vchoi_fork

[svn-r2531] Description:
    The "FILENAME" declared extern in h5test.h is not always used.
    It was used in h5_cleanup to remove temporary files created
    during tests.  Not all tests codes have used this routine.
    Indeed, quite a few of test programs do "#define FILENAME ".
    Also, h5_cleanup needs to work in tandem with h5_fixname.
    h5_fixname accepts an explicite base_name argument instead
    of using the global variable FILENAME.  That is cleaner.
Solution:
    Added char *base_name[] as a new argument to h5_cleanup, in
    the same style as h5_fixname.  Removed "extern char *FILENAME..."
    from use.  Also, undo some unnecessary declaration of "char *FILENAME"
    from some tests which don't use it at all (yet).
Platforms tested:
    modi4-64(irix64), arabica(solari2.7), eirene(linux)
    (arabica could not launch tests automatically.  I had to hack
     in LD_LIBRARY_PATH to make them run.)