Solve the problem seen when using recent versions of CMake (such as 2.8.11): OpenCVConfig.cmake violates the policy CMP0004.

Symptoms:
CMake Error at CMakeLists.txt:10 (add_executable):
Target "my_app" links to item "C:/Program Files " which has leading
or trailing whitespace. This is now an error according to policy CMP0004.

This problem occurs when building on Windows when we depend on libraries located (for example) in "C:\Program Files (x86)..."

Added bugfixes
- Changed CV_WINDOW_NORMAL to 1
- Changed the help function to static
- Added extra help information on mask specifics

Request to comments on pull request for simplex method. In particular
*) while(1) is replaced with for(;;)
*) if(true){...} constructions in tests are replaced with #if 1 ...
 #endif

used implementation from highgui module

InputArray is a reference, and references are always constant anyway. Making
it const even causes a GCC warning.

Fixing failed build.

3.0 seems like an appropriate time to do that.

Conflicts:
	modules/core/include/opencv2/core/types_c.h
	modules/gpu/src/cuda/imgproc.cu
	modules/gpu/src/cuda/safe_call.hpp
	modules/gpu/src/error.cpp
	modules/gpu/src/imgproc.cpp
	modules/imgproc/src/distransform.cpp
	modules/imgproc/src/shapedescr.cpp
	modules/python/src2/cv2.cpp
	modules/python/src2/cv2.cv.hpp