- changed default logging to log file
- parametrized log file path
- added fluentd configuration
- introduced fluentd multi_format parser plugin

Currently error logs sent to syslog are represented
with severity ERROR, which is misleading for Notice
and Warning messages during service startup/shutdown.

Change-Id: I55106775fa54b412b50ecc10c12930445da15d03
Related-bug: PROD-21904 (PROD:21904)

Change-Id: Ia6873c44f4e5b179a6c4a545fbf4b45c978812ea

Change-Id: Iec2d27cc4fdab9ba7772e9c26be66ba54f5aadfc
Depends-On: Ice4f38abfb0d870c56763dfeda2140032fa752a1

This patch enables support for Grafana and provides a new dashboard.

This also installs 2 additional packages (libdbd-mysql and
python-pymysql) that are required for running the collectd plugins.