order by orientation to avoid merging rows with different strands
order by orientation to avoid merging rows with different strands

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