Also, I made a separate macro for the current function name, which
helps simplify a lot of code that uses it.

Looks like we don't actually use them; when creating precompiled headers
with Visual C++, a dummy .cpp is created at build time.

When colorMode is set to 0 via Retina::_init method, _retinaParameters's
colorMode variable is not correctly assigned.

WITH_WINRT -> ENABLE_WINRT_MODE;
Some temporary char* replaced with Ptr<char>;
Build fix for regular WIN32;
Windows Platform SDK and MSVC search added to cmake;
Warinig fixes.

fix compilation OpenCV with cxx11 under Ubuntu with clang and gcc 4.7

The labels of a model are now cloned instead of using Mat::copyTo, because Mat::copyTo leads to a crash with the Python wrapper. I need to further investigate it.

added openfabmap code, contributed by Arren Glover. fixed several warnings in the new versions of retina filters

updated Retina module code for more flexible parallelisation : TBB parallel for loops are replaced by opencv parallel_for_ wrapper... compile error corrected

updated code for more flexible parallelisation : TBB parallel for loops are replaced by opencv parallel_for_ wrapper