Merge branch 'tizen_devel' into tizen

Merge branch 'tizen_devel' into tizen

[Version] 0.28.9

Inki Dae (5):
  mv_machine_learning: code cleanup to label manager
  mv_machine_learning: introduce
    mv_face_recognition_get_label_with_index() api
  mv_machine_learning: use in-class initialization
  mv_machine_learning: fix two bugs
  mv_machine_learning: fix a bug after unregistering

Kwanghoon Son (3):
  Fix typos
  Fix more typos
  Exclude mv_machine_learning gcov files

sangho park (2):
  Separate build and source directories
  add .gitignore files

Change-Id: I25fc7935b1fc68ba71c810099e5a9812a6f97cf1