added compute function to Feature2D (dirty workaround for #2699)
libd1394 2.x support for mingw on windows added
libd1394 2.x support for mingw on windows added
Merge branch 'mingw-libdc1394-2-windows' of https://github.com/dominikrose/opencv into mingw-libdc1394-2-windows
Merge branch 'mingw-libdc1394-2-windows' of https://github.com/dominikrose/opencv into mingw-libdc1394-2-windows
Merge branch 'mingw-libdc1394-2-windows' of https://github.com/dominikrose/opencv into mingw-libdc1394-2-windows
Merge branch 'mingw-libdc1394-2-windows' of https://github.com/dominikrose/opencv into mingw-libdc1394-2-windows
Merge branch 'mingw-libdc1394-2-windows' of https://github.com/dominikrose/opencv into mingw-libdc1394-2-windows
libdc1394 - removed validation for msvc compiler in CMakeLists.txt
Bug #2967, basic_structures.rst, fix 2 typos
Bug #2967, void DescriptorMatcher::radiusMatch() // description unclear,
only file:  common_interfaces_of_descriptor_matchers.rst
Bug #2966, insert CV_Assert(size.width>0 && size.height>0); in imshow()
(tab to space) 2x
(typo)
Add a variant of detectMultiScale with an argument 'weights' that
receives the number of neighbors joined into each detected object
Include the OpenCV config headers into every module.

This has no bearing on compilation, but it makes them show up in IDEs.
fixing empty Mat case
NativeActivity sample build with Eclipse CDT fixed.
Add a new global function to control ocl binary storage

Previously the feature is controlled by setBinpath implicitly.
We add the function to cope with setBinpath and setBinpath is only
useful when setBinaryDiskCache is set.
Refer to the header to see more info.
Erase MatchPairsBody's copy constructor.

It's the same as the implicitly defined one, and it causes a -Wextra warning
(not initializing the base class in a copy constructor).