Initial revision of DB8 logging levels

:Release Notes:
Review logging levels inside DB8 and revise use of "warning", "notice"
and "info" logging levels, to try to ensure we are logging at optimum
levels.
Reviewed "error" and "critical" log levels.

:Detailed Notes:
 - Downgraded 10 "warning" to "notice"
 - Downgraded 1 "warning to "info"
 - Create 2 new "warning" and deleted one
 - Upgraded 15 "info" to "notice"
 - Downgraded 18 "info" to "debug"

:Testing Performed:
Ran on #269

:QA Notes:

:Issues Addressed:

Open-webOS-DCO-1.0-Signed-off-by: Roger Stringer <roger.stringer@lge.com>

Change-Id: I4893cad33780eff5ed3f1db91caf8960196282dc
Reviewed-on: https://g2g.palm.com/3091
Reviewed-by: Build Verification
Tested-by: Roger Stringer <roger.stringer@lge.com>
Reviewed-by: Keith Derrick <keith.derrick@lge.com>
Reviewed-by: Roger Stringer <roger.stringer@lge.com>