Pull requests:
	#904 from ograycode:2.4
	#905 from bitwangyaoyao:2.4_TVL1
	#902 from apavlenko:fix_run_py
	#882 from pengx17:2.4_rewrite_query_info

Conflicts:
	modules/nonfree/src/surf.ocl.cpp
	modules/ocl/include/opencv2/ocl/private/util.hpp
	modules/ocl/src/hog.cpp
	modules/ocl/src/pyrlk.cpp
	modules/ocl/src/tvl1flow.cpp