Revert "move to static LOG"

This reverts commit e75b996e60d912442cf3b2eebb768363f3999c15.

Change is being reverted because we can't actually use a static LOG
object if we expect setup_logging to do the right thing at runtime.
Python logging will load logging objects at import time using the static
LOG object before setup_logging can run otherwise.

Conflicts:
	elastic_recheck/bot.py
	elastic_recheck/elasticRecheck.py

Change-Id: I582c7e9c9b3c2ccab6a695bfba00a61f7c0a04a9
Merge "Revert "move to static LOG""