Conflicts:
	modules/core/include/opencv2/core/cuda.hpp
	modules/cudacodec/src/thread.cpp
	modules/cudacodec/src/thread.hpp
	modules/superres/perf/perf_superres.cpp
	modules/superres/src/btv_l1_cuda.cpp
	modules/superres/src/optical_flow.cpp
	modules/videostab/src/global_motion.cpp
	modules/videostab/src/inpainting.cpp
	samples/cpp/stitching_detailed.cpp
	samples/cpp/videostab.cpp
	samples/gpu/stereo_multi.cpp

fixed building OpenCV with IPP 6.x (different DFT API); added Canny and rectangular morphology (based on Alex Kapustin patches)

This should allow many algorithms to take advantage of more parallelization
technologies.

Made all STL usages explicit to be able automatically find all usages of
particular class or function.

fixed iterations>1 case in morphological operations (bug #2348; thanks to Andrei Zaharescu for the fix)

extended morphological operations to handle arbitrary number of channels and CV_64F type; extended filter2D to handle CV_16S type. added test to check the supported formats; added description of supported formats in various filtering operations.

minor build system changes (now cuda code in opencv_core is compiled using CUDA_ARCH* cmake variables)

Added threaded versions (enabled only for Tegra at the moment) of threshold, erode/dilate. Slighlty restructured the code of medianBlur.

replaced "const InputArray&" => "InputArray"; made InputArray and OutputArray references. added "None()" constant (no array()).

a big patch; use special proxy types (Input/OutputArray, Input/OutputArrayOfArrays) for passing in vectors, matrices etc.