Fix the bug 3440.
fixed examples for opencv 2.4.8
fixed whitespace
removed whitespace at end of line 96
added performance tests for NLMeans
removed return images and fixed cv2 names
added 3-channel support to arithmetic operations
undo changes of cv2.cv.* functions/constants
fixed bug reported by Irina K. Also tried to fix LBP detector regression in quality (probably it did not help but still ...)
3-channel support in OpenCL kernels for setTo, resize, warpAffine and warpPerspective
tab => spaces
added imgpoints back
Merge pull request #2324 from vpisarev:fix_facedetect
Merge pull request #2319 from m3d:patch-1
Merge pull request #2304 from mattvenn:master
fixed OpenCL kernel flag in resize (thanks to Ilya L)
Use CMAKE_CFG_INTDIR meta-variable to get the library output directory of the opencv_matlab.
Merge pull request #2062 from cook:bug3440
Merge pull request #1735 from KonstantinMatskevich:umat_tests
Merge pull request #2315 from ilya-lavrenov:nlmeans_perf