webos-image: luna-service2=193,v3.9.2

:Release Notes:
Clear call timeouts on removing calls
Schedule call timeouts in right context
Fix multiple error messages from ls-hubd after installing any application
Create doxygen documentation of C++ API
Create examples of using meta-information

:Detailed Notes:
submissions/192..submissions/193
a691438 Merge branch 'develop'
7c15e25 Adjust version to 3.9.2
eb7f14e Merge branch 'master' into develop
718ab14 Clear timeouts on removing calls
c4eda6d make call-timeout scheduled in a right context
5f18f21 Warn about missing directories
fb0d99e Create doxygen documentation of C++ API
0d73e78 Create examples of using meta-information

:Testing Performed:
MinBAT. Unit-tests.

:QA Notes:

:Issues Addressed:
[BHV-7106] LS2: tests CallTest.CallTimeout and .CallTimeoutExpiration fail sometimes
[BHV-4265] multiple error messages from ls-hubd after installing any application
[BHV-1547] Create doxygen documentation of C++ API
[BHV-1594] Create examples of using meta-information
[BHV-9986} CCC: luna-service2=193,v3.9.2

Open-webOS-DCO-1.0-Signed-off-by: Oleksii Rudenko <oleksii.rudenko@lge.com>

Change-Id: I3a31e65db72d1fe2bfe3a7858449c8a0af7ceb74
Reviewed-on: https://g2g.palm.com/5916
Reviewed-by: DCO Verification
Build: Oleksii Rudenko <oleksii.rudenko@lge.com>
Reviewed-by: Oleksii Rudenko <oleksii.rudenko@lge.com>
Reviewed-by: Build Verification
Reviewed-by: Anatolii Sakhnik <anatolii.sakhnik@lge.com>
Tested-by: Oleksii Rudenko <oleksii.rudenko@lge.com>
Reviewed-by: Susan Montooth <susan.montooth@lge.com>