Conflicts:
	samples/cpp/tutorial_code/gpu/gpu-thrust-interop/Thrust_interop.hpp

Refer to the following issue for detail:
https://github.com/Itseez/opencv/issues/5145

removed unused context_id2; changed blur size 7x7 to 3x3; added short comments
removed unnecessary call to convertFromVASurface()
replaced dumpSurface() with writeImage()
added infile cmdline parameter, input image loaded by imread()

requesting a previously undeclared key is most likely an programming
error. e.g. a typo "--unused vs --unsued".
So throw in those cases.

Add an according failure testcase.

And refactor the code to make sure that the dev and runtime package lists are
in sync.