Document the (optional) arguments for get_all_DBLinks() and get_all_DBEntries().  From Michael S.
Document the (optional) arguments for get_all_DBLinks() and
get_all_DBEntries().  From Michael S.

at7/ensembl,mjg17/ensembl,muffato/ensembl,danstaines/ensembl,Ensembl/ensembl,mjg17/ensembl,mjg17/ensembl,muffato/ensembl,james-monkeyshines/ensembl,james-monkeyshines/ensembl,mjg17/ensembl,muffato/ensembl,at7/ensembl,Ensembl/ensembl,at7/ensembl,muffato/ensembl,james-monkeyshines/ensembl,Ensembl/ensembl,james-monkeyshines/ensembl,willmclaren/ensembl,at7/ensembl,Ensembl/ensembl,willmclaren/ensembl,danstaines/ensembl,danstaines/ensembl