Fix to bit that figures out which species.pm to use.
Fix to bit that figures out which species.pm to use.

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