add dnadb to vega_update database type
add dnadb to vega_update database type

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