ocl: multi-threading: fix bug in intialization
ocl: multi-threading: opencl buffer memory guard
Applied feature #3375 and fix of pull 1842 to avoid merging problems later
Merge pull request #1856 from alalek:ocl_fix_mt
Build error fix for binary-complience-checker tool.
Merge pull request #1875 from asmorkalov:android_bin_compat_fix
Merge pull request #1849 from StevenPuttemans:feature_3375_documentation
Added extras to traincascade functionality
Fixed minor documentation typo

In section "How do we get an Affine Transformation" subsection 2 there was a ' where there should have been a ` which caused the math to be rendered incorrectly.
Merge pull request #1877 from tim36272:patch-2
Merge pull request #1858 from StevenPuttemans:updates_traincascade
Image processing sample for WinRT added.
Filter selection and several filters implemented for WinRT sample.