added DOI 10.1038/s41592-019-0389-8 in citation.
new Dockerfile.
new vignette 'make-data.Rmd'.
use http://bioconductor.org/packages/devel/bioc/html/ExperimentHub.html.
moved all package data to aws s3. data are now available by using ExperimentHub.
prepare for submission on bioconductor.