addding missing utility edge method at Article class
addding missing utility edge method at Thesis class
adding a couple of utility methods missing for citation classes
update angulillos dep version
wrong org for angulillos, fixed
naively replace List to Stream, compiles
Merge branch 'feature/migrate/angulillos/stream'
init branch
starting with the review process to adapt methods to new optional option
some progress on the adaptation to optional
some progress on the adaptation to optional
some progress on the adaptation to optional
some progress on the adaptation to optional
finishing update of Protein class to comply with Optional stuff
finishing update for Optional stuff in vertex classes
adding missing edge class ProteinIsoform plus creation of these edges on ImportUniprot
fix at ImportUniprotGO regarding name of log file
adding ImportUniprotNCBITaxonomy class
adding missing ImportNCBITaxonGenInfoIndex class
minor fix at ImportNCBITaxonGenInfoIndex