o GENERALIZATION: Now argument 'organism' can also be a file or a data
  set in addition to a character string for most methods, e.g.
  FastqDataSet(name, organism=fa) where 'fa' is a FastaReferenceFile.
Merge branch 'master' of github.com:HenrikBengtsson/aroma.seq
Merge branch 'master' of github.com:HenrikBengtsson/aroma.seq