Making sure all threads have names
These are two very tricky tests. They PASS when run alone, but fail when run like:
    nosetests w3af/core/controllers/core_helpers/tests/ -s

It's NOT A CI issue that these fail, it's something with "dangling threads" and the w3afCore.py.worker_pool which starts threads
when the object is created and then never cleans up (there is no destructor) and nobody does it for him.