The provided interface id must be removed from the index. Otherwise, the
underlying implementations are using a wrong camera id.

Example:
VideoCapture(800) fails because PvAPI tries to open a camera
on position 800

OPENCV_ANDROID_SDK - OpenCV Android SDK location (or OpenCV build dir)
Can be passed via ndk-build parameter or environment variable.

Command 'execute_process' from OpenCVFindMatlab module can omit error message
to the standard output. This can break build of the OpenCV package in
ExternalProject_Add (Windows/Visual Studio).

enabled test UMat copyTo. Now it will detect FAIL on Intel platform for ROI (issue with clEnqueueCopyBufferRect)

make the software system dependent
add LICENSE on top

Prevent grabcut, houghcircles and houghlines python2 demos from running automatically while browsing demos in the demo list viewer