temporary disable performance test for alphaComp function(cherry picked from commit 1ce5165c)

(cherry picked from commit dbe76342)

temporary disable perf test for StereoBeliefPropagation(cherry picked from commit eb247d82)

increase epsilon for AlphaComp sanity test for integer input(cherry picked from commit 9e69e2a0)

(cherry picked from commit 7da3e98d)

(cherry picked from commit e55f2b26)

(cherry picked from commit d02c2911)

* BruteForceNonLocalMeans
* OpticalFlowBM(cherry picked from commit 8b44a42a)

fix nonfree module compilation without CUDA(cherry picked from commit 3e1f74f2)

(cherry picked from commit b10d4b05)

EMBED_CUDA and FORCE_EMBED_OPENCV flags added to cmake macro add_android_project;
INSTALL_CUDA_LIBRARIES option added to OpenCV.mk
opencv_dynamicuda library installation with enabled OPENCV_INSTALL_MODULES flag fixed;
CUDA initialization apportunity added to OpenCVLoader.initDebug();
Tutorial-4-CUDA sample reimplemented with static OpenCV and CUDA initialization.
(cherry picked from commit 6ae4a9b0)

(cherry picked from commit 65b4d779)

(cherry picked from commit 0cd0e474)

save previous values of LOCAL_* variables and restore them at the end(cherry picked from commit 286fe261)

fix path to CUDA libraries (use targets/armv7-linux-androideabi/lib)(cherry picked from commit a098fb18)

(cherry picked from commit 214cbabc)

turn on CUDA part of stitching module on Android for non-dynamic build(cherry picked from commit a138e5a6)

turn on CUDA part of nonfree module on Android for non-dynamic build(cherry picked from commit d8f73771)

(cherry picked from commit e7e63fac)

CV_CAP_PROP_SUPPORTED_PREVIEW_SIZES_STRING property is not supported
by all VideoCapture backends. Some backends can return 0.0 or -1.0.(cherry picked from commit c41e8006)

(cherry picked from commit eb9d7c4d)

(cherry picked from commit dca56841)

fill destination matrix with zeros if it was reallocated(cherry picked from commit dda99954)

Fixed bug #3489: The code assumed that two global variables would be constructed in a particular order, but global variable initialization order is compiler-dependent.
(cherry picked from commit 6bf599b1)

Fix: freeing previous elements has to be done before loading new parameters to avoid trying to delete unexisting objects if arrays size was modified
(cherry picked from commit 3f458c6e)

See also #2101(cherry picked from commit ae795e57)

Fixed a valgrind 'Conditional jump or move depends on uninitialised value(s)' on cv::kmeans(...). The original code used points(sampleCount, 1, CV_32FC2), which confused generateCentersPP into thinking it is a 1 dimensional center, instead of 2. As a result it would set only the x variable and leave y unitialised.
(cherry picked from commit 601b7d1d)

Fix algorithm setter argument validation for uchar(cherry picked from commit e21c6e19)

Fix compilation erros when compiling this constructor.
First argument type of "convertTo" should be instance, not a pointer of instance.

First pull request was created for master branch.
But it should be marged for 2.4.
https://github.com/Itseez/opencv/pull/2113
(cherry picked from commit 2ae20c74)

(cherry picked from commit 4f9c081d)

(cherry picked from commit 2272a587)

(cherry picked from commit b036fc75)

(cherry picked from commit 09d25e11)

Also deleted miscellaneous remaining multimon cruft.
Deleted #include <winuser.h>, because <windows.h> includes it
already.

This should have a nice side effect of preventing us from
accidentally using any Windows API that's too new.
(cherry picked from commit 795c108f)

* out of border access in edgesHysteresisLocalKernel
* incorrect usage of atomicAdd(cherry picked from commit 5dbdadb7)

This reverts commit dbce9069.
(cherry picked from commit bfc27271)

This reverts commit 33d42b74.
(cherry picked from commit 5d099df5)

(cherry picked from commit 3e4bb371)

This reverts commit 952027a8.
(cherry picked from commit b6ba1f22)