Merge remote-tracking branch 'rsa/tizen_2.2' into tizen

Merge remote-tracking branch 'rsa/tizen_2.2' into tizen

[Note] Rebase wrt-installer

Conflicts:
	CMakeLists.txt
	packaging/wrt-installer.spec
	packaging/wrt-preinstall-widgets.service
	src/CMakeLists.txt
	src/configuration_parser/widget_parser.cpp
	src/jobs/widget_install/job_widget_install.cpp
	src/jobs/widget_install/task_database.cpp
	src/jobs/widget_install/task_database.h
	src/jobs/widget_install/task_encrypt_resource.cpp
	src/jobs/widget_install/task_manifest_file.cpp
	src/jobs/widget_install/task_smack.cpp
	src/jobs/widget_uninstall/task_db_update.cpp

Change-Id: I23162461f3032edf25dc91daa1077ac87ba0b55c