both tests by picture and rand mat
Update out.cpp

Fixed a bug with the cv::format(cv::Mat, ...) method for matrices with only one row

see http://answers.opencv.org/question/21201/cvformat-does-not-format-the-way-it-should/?answer=23945#post-id-23945 for details
increase epsilon for MOG2::getBackgroundImage test:

it uses float arithmetics
bug fix
copyright fix
Merge pull request #2541 from JinoBetti:2.4
fixed C4505
doc typos
Merge pull request #2548 from jet47:gpu_mog2_test
Merge pull request #2551 from ilya-lavrenov:ocl_nonfree
Merge pull request #2553 from ilya-lavrenov:typo
OpenCV version++. OpenCV Manager version++.
Merge pull request #2554 from asmorkalov:ocv_249_version
Added IPP Async converters, doc and sample
Added SharedMatrix
enable IPP ICV support
disable gpu::GeneralizedHough compilation on gcc 4.7
disable GeneralizedHough tests on gcc 4.7
Merge pull request #2499 from mlyashko:back_proj_fix1
Merge pull request #2572 from jet47:gpu-generalized-hough