Merge remote-tracking branch 'origin/2.4'

Original pull requests:
	#996 from jet47:gpu-nvcuvid-libraries
	#995 from jet47:fix-bug-2985
	#999 from snosov1:unreliable-results-fix
	#1005 from alekcac:doc_fix
	#1004 from jet47:fix-bug-3068
	#987 from jet47:bug-3085-fix
	#969 from pengx17:2.4_binary_cache
	#929 from dominikrose:mingw-libdc1394-2-windows
	#1000 from ivan-korolev:fix_sift_bug_2892
	#1001 from ivan-korolev:fix_stitching_bug_2405
	#998 from asmorkalov:android_cmake_mips_fix
	#993 from ivan-korolev:fix_videostab_bug_3023
	#988 from snosov1:3071-fix
	#986 from pengx17:2.4_initiated_context
	#982 from pengx17:2.4_fix_two_bugs
	#981 from SeninAndrew:ximea_camera_support_fix
	#991 from asmorkalov:android_javadoc_fix
	#972 from jet47:mog2-params-bug-2168
	#980 from SpecLad:include-config
	#973 from pengx17:2.4_oclclahe
	#903 from aks2:2.4
	#968 from asmorkalov:android_na_cproj_fix
	#971 from SpecLad:matchers-ctor
	#970 from asmorkalov:dshow_valid_check_fix
	#965 from apavlenko:fix_java_empty_mats

Conflicts:
	cmake/OpenCVModule.cmake
	modules/core/src/matmul.cpp
	modules/gpu/CMakeLists.txt
	modules/ocl/include/opencv2/ocl/ocl.hpp
	modules/ocl/perf/perf_imgproc.cpp
	modules/ocl/src/imgproc.cpp
	modules/ocl/src/initialization.cpp
	modules/stitching/src/matchers.cpp
	modules/video/src/video_init.cpp
	modules/videostab/src/global_motion.cpp

cmake/OpenCVModule.cmake

@@ -470,7 +470,8 @@ endmacro()
 #   ocv_create_module(<extra link dependencies>)
 #   ocv_create_module(SKIP_LINK)
 macro(ocv_create_module)
-  add_library(${the_module} ${OPENCV_MODULE_TYPE} ${OPENCV_MODULE_${the_module}_HEADERS} ${OPENCV_MODULE_${the_module}_SOURCES})
+  add_library(${the_module} ${OPENCV_MODULE_TYPE} ${OPENCV_MODULE_${the_module}_HEADERS} ${OPENCV_MODULE_${the_module}_SOURCES}
+    "${OPENCV_CONFIG_FILE_INCLUDE_DIR}/cvconfig.h" "${OPENCV_CONFIG_FILE_INCLUDE_DIR}/opencv2/opencv_modules.hpp")
   if(NOT the_module STREQUAL opencv_ts)
     set_target_properties(${the_module} PROPERTIES COMPILE_DEFINITIONS OPENCV_NOSTL)
   endif()