Align alerts and grafana dashboard with fluentd

This change introduces:
  - The new version of Grafana dashboard aligned
with the new log-based metrics from fluentd;
  - Updated prometheus alert with case insensitive check;
  - Updated logging.conf with request logging.

Change-Id: Id51a686d2c4650b6ae9a343002dd7da09685f0d8
5 files changed