Neumann L., Matas J.: Real-Time Scene Text Localization and Recognition, CVPR 2012.

High-level C++ interface and implementation of algorithm is in the objdetect module.
C++ example, a test image, and the default classifiers in xml files.

Add a new variant of detectMultiScale with output arguments 'objects' and 'numDetections'; factor most of detectMultiScale's code into 2 protected methods

It was merged by mistake.

This reverts commit ab6be9b7.

receives the number of neighbors joined into each detected object

This should allow many algorithms to take advantage of more parallelization
technologies.

Also move cv::linemod to own header

This also fixes few clang build errors

cv::Complex, cv::Point_ and cv::Point3_ are moved.

Also move RTTIImpl class to the only usage

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

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

Made all STL usages explicit to be able automatically find all usages of
particular class or function.