Merge pull request #543 from taka-no-me:explicit_stl

diff --cc modules/ml/include/opencv2/ml/ml.hpp
Simple merge

diff --cc modules/softcascade/include/opencv2/softcascade/softcascade.hpp
Simple merge

diff --cc modules/softcascade/src/integral_channel_builder.cpp
Simple merge

diff --cc modules/softcascade/src/softcascade.cpp
Simple merge