bugfix: cdna coordinates and removed_columns

Coordinates should be divided by 3 before being put into a string
bugfix: Use $self->o() for homoeologous_genome_dbs
Depends on the Ensembl API v76
pipeline not compatible with eHive 2.1
We did not use QuickTreeBreak in e76
The filtering cutoff is an integer
Only run that if we have lost some members