JPSSnagg

test/testfiles/*
    Update expected output files for new command line options.
test/testnagg.sh
    Add --minimum=1 parameter for tests of COMPACT layout.
configure
configure.ac
README
doc/RELEASE.txt
src/nagg.h
    Update version to 1.6.0-beta
src/nagg_options.c
    Update usage message for new command line options (--filter, --layout, --minimum).
src/nagg_filayopt.c
src/nagg_filayopt.h
    Add default minimum size 1024 byte for datasets to which filter and layout options
    will be applied.
src/nagg_write_granules.c
    Remove commented code.
    
Tested (extensive) on jam & koala with gcc and icc, not extensive on platypus.