Added options in mapping.conf to allw assymetrical mapping
Added options in mapping.conf to allw assymetrical mapping

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