Handle multiple files in the same directory:

[ ADDED ]  Multiple files with multiple CUE files in
the same directory

[ ADDED ]  Multipe files with a single CUE file in the
same directory

[ ADDED ]  Single file with multiple CUE files in the
same directory

[ ADDED ]  Single file with a single CUE file in the
same directory

[ ENHANCEMENT ]  Tracknumber and title tags are handled
from the CUE file, rather than from the split files, allowing
superior support in the event of multiple files in the same
directory

[ ENHANCEMENT ]  'shnsplit' has the added '-c' option to force
the beginning number of split files.  Useful if there are
multiple files in the same directory for one CUE file and the
numbering should continue from the last split file rather than
starting over with each new file