* Compiles against current 2.4 branch OUT-OF-THE-BOX on Ubuntu 14.04:
  cmake -D CMAKE_INSTALL_PREFIX=/home/ahb/software/opencv/install -D CMAKE_BUILD_TYPE=RELWITHDEBINFO -D CMAKE_CXX_FLAGS=-std=c++11 -DOPENCV_EXTRA_MODULES_PATH=/home/ahb/software/opencv_contrib/modules -DBUILD_opencv_adas=OFF -DBUILD_opencv_bgsegm=OFF -DBUILD_opencv_bioinspired=OFF -DBUILD_opencv_datasetstools=OFF -DBUILD_opencv_face=OFF -DBUILD_opencv_line_descriptor=OFF -DBUILD_opencv_matlab=OFF -DBUILD_opencv_optflow=OFF -DBUILD_opencv_reg=OFF -DBUILD_opencv_rgbd=OFF -DBUILD_opencv_saliency=OFF -DBUILD_opencv_surface_matching=OFF -DBUILD_opencv_text=OFF -DBUILD_opencv_tracking=OFF -DBUILD_opencv_xfeatures2d=OFF -DBUILD_opencv_ximgproc=OFF -DBUILD_opencv_xobjdetect=OFF -DBUILD_opencv_xphoto=OFF ..
* Fix names in doc/code_example/CMakeLists.txt
* Copy code_example to samples folder, add #define, to have it automatically compiled as sample