improved performance of cv::ocl::minMax
changes for GFTT
improved performance of cv::ocl::countNonZero
improved performance of cv::ocl::sum
improved performance of bitwise ops
nonfree perf tests
typos
Merge pull request #2475 from ilya-lavrenov:ocl_2.4_fix
missing () on Mat::type()
Viz::setViewerPose() - changed up-vector to down (common for Computer Vision & Odometry)
Merge pull request #2484 from berak:mat_doc_24
Merge pull request #2485 from Nerei:viz_correct_viewer_pose
OpenCV_MODULES_SUFFIX variable added to OpenCVConfig.cmake to enable custom module configurations.
Merge pull request #2458 from asmorkalov:android_cmake_opencv_modules_suffix
minor doc fix