handle unicode things in task logger
handle unicode things in task logger

Related to https://github.com/ansible/ansible-tower/issues/7957

* Problem presented itself as Instances falling out of Instance Groups.
This was due to the cluster membership policy decider erroring out on a
logger message with unicode.
* Fixed up potential other unicode logger unicode issues in tasks.py

wwitzel3/awx,wwitzel3/awx,wwitzel3/awx,wwitzel3/awx