JPSSnagg

- Commit reverse merge to remove addition of input file presort and processing by filesets (subsets of input files and granules) (r 398).  Keep --onefile and --nofill options.
- Use ending time of last granule for the ending time field of output file names. This still does not work for the test with 4 beginning and 4 ending granules separated by 67 fill granules.
- Revise expected output files for tests for changes in filenames.
- Revise tests and expected output files for filter and layout options due to changed output of h5dump in HDF5 v1.8.17.