Conflicts:
	modules/tracking/src/precomp.hpp
	modules/tracking/src/tldDetector.cpp
	modules/tracking/src/tldDetector.hpp
	modules/tracking/src/tldModel.cpp
	modules/tracking/src/tldModel.hpp

1. Added 2-nd level of parallelization of NN on OpenCL
2. Restructured detector - now all filters work independently:
Variance Filter->Ensemble->NN,  through "buffers"

fixed warnings in the tracking module

Fix for Itseez/opencv_contrib/issues/278 - core dump in the case of no match(...) results.

Adds a first implementation of the OCRBeamSearchDecoder class

TLD fixes & optimizations

Added KCF Tracker Framework

added PASCAL VOC dataset

1. Added 2-nd level of parallelization of NN on OpenCL
2. Restructured detector - now all filters work independently:
Variance Filter->Ensemble->NN,  through "buffers"

Adds a first implementation of the OCRBeamSearchDecoder class using the Single Layer CNN character classifier described in Coates, Adam, et al. paper: Text detection and character recognition in scene images with unsupervised feature learning, ICDAR 2011

Added confidence support to disparity filtering

DisparityWLSFilter demonstrated the best results, so I removed all the other
filters. Quality was significantly improved by adding confidence support
to the filter (left-right consistency + penalty for areas near depth discontinuities).
Filter was optimized using parallel_for_ and HAL intrinsics. Demo application was
rewritten for better compliance with OpenCV standards. Added accuracy and
performance tests. Documentation was added, as well as references to the
original papers.