Autotuned_index now prints all info into logger instead of couting it.
WinRT core compatibility fixes

Update system.cpp

Update system.cpp

Update system.cpp

Update matching.cpp

Update matching.cpp
fixed bug 3484
fix bug 3252
bug 2740 added fix
fix bug 3434
fixed bug 2626
Changed ostringstream to ostream for new print_params and added the old
version of print_params for backwards compatibility.
fix OpenCVConfig.cmake template - missing parentheses
Merge pull request #2727 from StevenPuttemans:bug_3484
Merge pull request #2692 from 1Hyena:2.4
Merge pull request #2699 from GregoryMorse:patch-1
Merge pull request #2728 from StevenPuttemans:bug_3434
Merge pull request #2729 from StevenPuttemans:bug_3252
Merge pull request #2730 from StevenPuttemans:bug_2740
Merge pull request #2731 from StevenPuttemans:bug_2626
Merge pull request #2737 from jet47:fix-opencv-cmake-config