Calib3d badarg tests fixed. Default exception handling enabled;
Highgui Video I/O tests fixed on ARM;
Code cleanup.

Unused scenarious removed.
Grey scale convertion replaced with cv::Canny call.

Fixed flann build with NEON;
Fixed Haming distance with NEON;
Honest cvRound for WinRT added;
cvRound test added;
Video IO with direct show disabled;

GPU module turned off;
TIFF support turned off;
Windows Managment and Video IO (VFW) turned off.