webos-image: luna-service2=156

:Release Notes:
Luna-service2 allows wildcards to be used in the "allowed-names" field
and for security to be enabled or disabled as a DISTRO feature.

:Detailed Notes:
Add additional folders to look for developer mode roles and services.
Add option to control security in configuration files.
Apply centralized nice script.
Add empty transport message stub singleton in failed messages.
Correct potential seg-faults
Implement wildcards for allowed-names field.

submissions/154..submissions/156
104394d Fix luna-service2 crashes on invalid JSON inputs
ee8a628 Add additional folders to look for roles/service
c60412f Fix permissions lookup for wildcards
ab0205a Add WEBOS_LS2_SECURE variable to control security
12c322f Apply centralized nice script
02a3d74 Add empty transport message stub for failed messages

:Testing Performed:
Minibat was done on the target

:QA Notes:

:Issues Addressed:
[GF-38331] luna-service2 must also search /var/palm/ls2-dev for roles
           and services
[GF-39397] Move the luna-service2 security setting to DISTRO_FEATURES
[GF-36804] Adjust NICE values for important processes
[GF-38362] luna-service2: Add empty transport message stub for failed
[GF-40551] CCC: luna-service2=155

Open-webOS-DCO-1.0-Signed-off-by: Alekseyev Oleksandr <alekseyev.oleksandr@lge.com>
Change-Id: Ic7f0c98d78787f8405caabcbc419d267790e71d3
Open-webOS-DCO-1.0-Signed-off-by: Keith Derrick <keith.derrick@lge.com>
Reviewed-on: https://g2g.palm.com/3581
Reviewed-by: Build Verification
Reviewed-by: Alekseyev Oleksandr <alekseyev.oleksandr@lge.com>
Tested-by: Alekseyev Oleksandr <alekseyev.oleksandr@lge.com>
Reviewed-by: Keith Derrick <keith.derrick@lge.com>
Tested-by: Keith Derrick <keith.derrick@lge.com>