If we have perfect matches (min_dist == 0.0), then strict comparison
fails. Making it non-strict results in treating perfect matches as
good.

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.

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.

Invalid links and refences fixed.
SpaeseMat class documentation updated.