Revert "supervisor: use proper loggers everywhere, use right routing key, don't force logging level"
Revert "supervisor: use proper loggers everywhere, use right routing key, don't force logging level"

This reverts commit de3097ff402e98006bd1f97a262047890a5adeff.

Conflicts:

	openquake/supervising/supervisor.py

gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine