Merge branch 'fix_documentation' into 'master'

bob/pad/face/config/casia_fasd.py

bob/pad/face/config/casia_surf.py

bob/pad/face/config/casiasurf.py

bob/pad/face/config/casiasurf_color.py

bob/pad/face/config/deep_pix_bis.py

bob/pad/face/config/mask_attack.py

bob/pad/face/config/maskattack.py

bob/pad/face/config/oulu_npu.py

bob/pad/face/config/replay_attack.py

bob/pad/face/config/replay_mobile.py

bob/pad/face/config/svm_frames.py

bob/pad/face/config/swan.py

bob/pad/face/database/__init__.py

bob/pad/face/database/casia_fasd.py

bob/pad/face/database/casia_surf.py

bob/pad/face/database/casiasurf.py

bob/pad/face/database/database.py

bob/pad/face/database/mask_attack.py

bob/pad/face/database/maskattack.py

bob/pad/face/database/oulu_npu.py