used new device layer for cv::gpu::sum
used new device layer for cv::gpu::minMax
fixed warnings
cast to reference
added gridMinMaxLoc function
used new device layer for cv::gpu::minMaxLoc
used new device layer for cv::gpu::countNonZero
used new device layer for cv::gpu::reduce
increase epsilon for GEMM & Convolve sanity tests for CUDA 5.5
removed unroll_detail.hpp
bitwise operation optimization
used new device layer for cv::gpu::integral
removed dependecy from cudalegacy