added gene.remove_mrnas_with_cds_shorter_than
gff.removegenes and mrnas with cds less than...
genome.removemrnaswithcdsshorterthan...
added removemrnaswithcdsshorterthan to console but still buggy?
fixed gene.remove_mrnas_with_cds_shorter_than, runs from console, removes genes, it's great you should try it