add sub to change the access fro a db connection
add sub to change the access fro a db connection

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