backport commit 13f76375

backport commit 8c092493

Added constructors and destructors for RgbdPlane

* declared constructors and destructors of RgbdPlane

* definitions written

* tests for python bindings added

Add test for ximgproc/edgeboxes and fix up Python sample to work with returning scores

* Test for Edgeboxes implementation

* Fix and enhance edgeboxes_demo.py

* Make double literal a float literal

* Address review feedback

Build DoG Pyramid if useProvideKeypoints is false

The buildDoGPyramid operation need not be performed unconditionally. In cases where it is not needed, both memory and speed performance can be improved

- instead of validation checks

Fix memory corruption in RgbdPlane

* Fix memory corruption

* Use divUp instead of explicit rounding up integer division

* rgbd: add test

waldboost_detector train: avoid failed asserts while training by exiting early

* Avoids a failed assert which crashes training

* xobjdetect: improve waldboost messages

If 'lambda <= 0' or 'kappa <= 1.0', the stop condition for the solver is never met because beta would not be increasing.