add rdds.writers module for filesystem-independent output
convert images module to use writers for output
add local fs collected file writer, for output after collecting to driver
add collectToDriver option in Images png export
first cut at parallel s3 writer
set max kryo buf size in ec2 launch script
add s3 writer to parallelWriters lookup table
first implemetations of S3 file writer and collected file writer
fix init args for boto single file writer
move common boto code into readers BotoS3Client superclass
single file readers for local fs and s3
remove check that conf file is on local filesystem, no longer needed
fix instantiation of reader in series load conf file
merge from upstream
add FileNotFoundError in readers, thrown by LocalFS readers
update test_readers to assert FileNotFoundError thrown on missing file
change SeriesLoader loadConf to check for FileNotFoundError
add test for loading series from binary with conf file
change filenames from Images saveAsBinarySeries to order by x dim first
fix block size calc where requested size bigger than can be produced