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: I86a6d3d11dce8ce4aba51278378f151e2d21908f
5 files changed