fix for compiling 2.4 opencv with xcode 5.1
Fixed bug in IPPMorphOp function when looping over elements of the morphology kernel.
Updated documentation: library names

updated the library names to OpenCV version 2.4.9
Merge pull request #2696 from PhilLab:2.4
Merge pull request #2636 from atrebbi:#3653
Merge pull request #2693 from mvukad:bugfix_ippmorphop
fix cv::subtract function:

call dst.create(...) before using it
Merge pull request #2703 from jet47:subtract-create-dst-mat
fix output matrix allocation in cv::subtract
fixed wrong download link in tutorial
finally fix cv::subtract
fixed IPP related warnings
added ipp threshold inplace
Merge pull request #2712 from jet47:subtract-fix-3rd-attempt
Merge pull request #2708 from StevenPuttemans:2.4
Merge pull request #2706 from ilya-lavrenov:ipp_2.4_warnings
Fixed ipp check for cornerMinEigenVal
Merge pull request #2710 from ilya-lavrenov:ipp_threshold
increased eps to pass tests
Merge pull request #2715 from akarsakov:fix_corner_min_eigen