- added new functions from core module: split, merge, add, sub, mul, div, ...
- added function replacement mechanism
- added example of HAL replacement library

Simplifies cross compilation with CUDA for ARM boards. CUDA arch is set for all ARM targets, --unresolved-symbols=ignore-in-shared-libs is set when cross-compiling for ARM and FindCUDA.cmake was adjusted to find shared library stubs within the CUDA toolkit.

The latest version (5.1.1) of the gnu compiler returns just its major version ("5") when given the "-dumpversion" argument. Gnu compiler developers don't consider this to be an error. A workaround for this case has been made.

Added fix to OpenCVFindMatlab.cmake to properly locate modern versions of unix- MATLAB.  Tested with MATLAB R2015a and Ubuntu 14.04.

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()

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

Because that's the variable actually used by CPack.

fixed trailing whitespaces
renamed files *vaapi* to *va_intel*
changed names vaapi* to va_intel*

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