Merge branch 'devel/tizen' into tizen

Merge branch 'devel/tizen' into tizen

* devel/tizen:
  Change std::map to ctx::CtxJson for managing method options
  Version 4.0.0 release 1
  Prevent uncaught exceptions from ctx_sensor_rec_read & ctx_sensor_rec_read_sync
  SensorRecorderService realizes IUserService instead of IService
  Replace MethodCallHandler::setCaller() with a parameterized constructor
  Remove thread switching of sensor events
  Rename the DB file to .context-sensor-recorder.db
  Remove run dependency to 'sensord'

Change-Id: Icc569af861f5b833901189b94f14130ba880ecc6
Signed-off-by: Mu-Woong Lee <muwoong.lee@samsung.com>