increase epsilon for TVL1 sanity test
increase epsilon for ResizeSameAsHost test
use downscaled frames in FGDStatModel test
fix BGR->BGR5x5 color convertion
Fixed range for 'v' channel for 8U images.
Merge pull request #3137 from akarsakov:fix_cvtcolor_luv_rgb
fix CUDA cvtColor after corresponding change in CPU version

see https://github.com/Itseez/opencv/pull/3137
Several fixes for lintian varnings
Merge pull request #3143 from jet47:cuda-cvt-color-fix
Merge pull request #3109 from jet47:gpu-test-fixes
Merge pull request #3147 from asmorkalov:ocv_deb_lintian_fixes
fix CUDA LUT implementation

In CUDA 6.0 there was a bug in NPP LUT implementation (invalid results when
src == 255). In CUDA 6.5 the bug was fixed.

Replaced NPP LUT call with own implementation (ported from master branch) 
to be independant from CUDA Toolkit version.
Merge pull request #3164 from jet47:fix-cuda-lut
Fixed crash in SSE implementation of FREAK descriptor when number of pairs is set to something other than 512.

See http://code.opencv.org/issues/3889 for more details
Merge pull request #3178 from jimcamel:freak_sse_bugfix