Also, removed the one from modules/python/src2/cv.py and cleared its
executable bit, since it's not a script.

sample code : https://github.com/Itseez/opencv/blob/master/samples/cpp/tutorial_code/features2D/SURF_descriptor.cpp

Bug #2888

OpenCV Manager verison incremeneted;
Docs and tests updated accordingly;
COnstant for Manager initialization added.

e.g. <opencv2/core/core.hpp> become <opencv2/core.hpp>

Also renamed <opencv2/core/opengl_interop.hpp> to <opencv2/core/opengl.hpp>

OpenCV version incremented;
New CvCameraViewListener interface description added.

Quick fix for: http://code.opencv.org/issues/2803

See http://sourceforge.net/tracker/?func=detail&aid=3484857&group_id=38414&atid=422030

Tutorial text was not consistent with tutorial source code in samples directory.
Inline source code was replaced on "includeliteral" directive with link to cpp file.