Merge branch 'devel/tizen' into tizen

* devel/tizen: (72 commits)
  sensord: use readdir() instead of deprecated readdir_r
  sensord: fix bug with invalid character(!)
  sensord: rename fusion sensors to proper name
  sensord: add defensive code for blocking issue
  sensord: remove unnecessary socket log
  sensord: suppress verbos log message
  sensord: support get_data() API simply
  sensord: separate channel for event and command
  sensord: compare previous interval with current interval
  sensord: add required privilege to pre-defined types
  sensord: use int32_t instead size_t
  sensord: return the appropriate error
  sensord: use underscore(_) instead of dot(.) for URI string
  sensord: use emplace_back instead of push_back
  sensord: enable rotation vector/orientation sensors
  sensord: remove unnecessary testcases for fusion library
  sensord: enable linear acceleration sensor
  sensord: enable gravity sensors (lowpass and complementary)
  sensord: enable auto_rotation sensor
  sensord: modify sensor plugin interface
  ...

Change-Id: Ib1f03226d10a375d95e2164d9c57143c03828bbf
Signed-off-by: kibak.yoon <kibak.yoon@samsung.com>