bugfix: the claimed batch was not released
bugfix: the claimed batch was not released

The problem was when a worker is contaminated and has to die: remainings jobs
of the batch were not released.
We now have an explicit list of all the cause_of_death that could happen through
a batch, and for which we should free the jobs

Ensembl/ensembl-hive,Ensembl/ensembl-hive,Ensembl/ensembl-hive,Ensembl/ensembl-hive