added remove_feature_type method can clean up the meta_coord table for a given feature/coord_system should only be used if you are sure there are no more feature left of that type
added remove_feature_type method
can clean up the meta_coord table for a given feature/coord_system
should only be used if you are sure there are no more feature left of that type

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