small brief edit, was trying to allow user to pass integral image but this introduced some bugs, so no longer doing this...
for now.

adding the Brief descriptor, associated hamming distance functors for bruteforce matching.  Also adding cout << cv::Mat functions in core.

switched from 8-point kernel to 7-point kernel in the fundamental matrix estimator (fixes some corner cases; see ticket #434)

warp-affine                     //ticket 572
warp-perspective            //ticket 575
segmentation-grabcut    //ticket 666
_3d-fundam                     //ticket 434
posit                               //ticket 430