webos-image: db8=82

:Release Notes:
db8: submissions/82

:Detailed Notes:
db8: submissions/81...submissions/82
- 927efed Add devices cache, extend test
- 20c63c9 Modify MojDb to support concurrent puts
- b318dd8 Add a tool program which generate db image
- 693f508 Fix addl build issue with gcc-4.8.1

:Testing Performed:
mini-BAT

:QA Notes:

:Issues Addressed:
[GF-37542] CCC: db8=82
[GF-35450] 'put' records to a Kind related to shard doesn't support concurrent puts
[GF-33567] DB image genarator for DB8

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

Change-Id: Ib50bcd1aa9d243128b08b43956c170379a6089d7
Reviewed-on: https://g2g.palm.com/3381
Reviewed-by: Roger Stringer <roger.stringer@lge.com>
Tested-by: Roger Stringer <roger.stringer@lge.com>
Reviewed-by: Build Verification
Reviewed-by: Susan Montooth <susan.montooth@lge.com>
Tested-by: Susan Montooth <susan.montooth@lge.com>