added improved ORB implementation, convex-convex polygon intersection, eigen2x2 low-level function ...

[~] NCVPyramid uses tr1 and thus can be compiled with CL, commented out on linux
[+] Moved reduction functors to NCVAlg
[*] Warnings in NCV

Performance testing: added option to get list of all values for CV_ENUM; added perf test for cv::Sobel

Added possibility to configure TBB behavior in Perf tests --- now we can set the number of TBB threads in the perf tests either as console parameter perf_tbb_nthreads or 
in a test itself using the method declare.tbb_threads(n).

clarified parameters inputs and outputs at the interface level for better clarity and ease of use, also corrected a mistake at activateContoursProcessing interface method

[+] Color conversions stub via pixel types
[+] Pyramid calculation (required for mipmaps in CUDA 4.1)
[~] Changed C strings to C++ throughout NCV
[~] Fixed a couple of bugs in NCV