Renamed external_db.display_label to db_display_name to distinguish it from similarly-named column in xref.
Renamed external_db.display_label to db_display_name to distinguish it from similarly-named column in xref.

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