Unified verbose and debug settings

This patch sets versbose=true to all OpenStack components and let
users decide if components should run in debug mode.

Change-Id: Id32aefe2a733fb68b8e520451a094cdbc07fc450
Fixes: rhbz#1048041
(cherry picked from commit 2686e154120fe713b4be209df329864d1256ad0a)
Merge "Unified verbose and debug settings" into havana