webos-image: db8=139

:Release Notes:
Volume testing,
Notify DB8 about attached/detached media.

:Detailed Notes:
0fe80cf Add volume test
b8b7194 Add status for registerMedia method

:Testing Performed:
MiniBAT, DB8 unit tests.

:QA Notes:

:Issues Addressed:
[BHV-6877] [DB8] Volume testing
[BHV-3659] Notify DB8 about attached/detached media
[BHV-7827] CCC: db8=139

Open-webOS-DCO-1.0-Signed-off-by: Igor Kuksyuk <igor.kuksiuk@lge.com>

Change-Id: If3d2065eb1551bbc05fd0befe979fc9bb45cb66e
Reviewed-on: https://g2g.palm.com/5654
Reviewed-by: DCO Verification
Build: Igor Kuksyuk <igor.kuksiuk@lge.com>
Reviewed-by: Build Verification
Reviewed-by: Igor Kuksyuk <igor.kuksiuk@lge.com>
Tested-by: Igor Kuksyuk <igor.kuksiuk@lge.com>
Reviewed-by: Susan Montooth <susan.montooth@lge.com>