Do not assume division is an Ensembl division
Do not assume division is an Ensembl division

I came across this while running the Load Members pipeline. It wouldn't start, because there isn't a `parasite` conf in the source code, and calling `check_file_in_ensembl` doesn't let me overwrite it., I think someone already had this problem because there's something similar in the `#NOTE:` comment above `binary_species_tree`.
Ensembl/ensembl-compara,Ensembl/ensembl-compara,Ensembl/ensembl-compara,Ensembl/ensembl-compara,Ensembl/ensembl-compara,Ensembl/ensembl-compara,Ensembl/ensembl-compara,Ensembl/ensembl-compara