[3rd attempt] fixed HOGDescriptor::detectMultiScale() to group weights as well as ROIs
First version of 'viz' module
Reverted back to the previous method where a public method groupRectangles was added to HOGDescriptor to take care of ROI and weight grouping
Added spacing in a nested template argument list.
fix linux compilation errors
Merge pull request #1 from ozantonkal/viz

fix linux compilation errors
Initial implementation of keyboard callback registration mechanism without boost
boost dependency has been removed
Merge pull request #3 from ozantonkal/removing_boost_dependency

Removing boost dependency
fixed compilation (included ctime in precomp.hpp)
showPointCloud initial implementation together with test
Merge pull request #4 from ozantonkal/implementing_addPointCloud

showPointCloud initial implementation together with test
removed cv keywords and redundant lines from showPointCloud
CV_64FC3 support
Merge pull request #5 from ozantonkal/implementing_addPointCloud

Implementing add point cloud
little refactoring
misprint
implemented wasStopped flag
implementation of * operator for Affine3f and point3d, initial implementation of isNaN
implemented copy_non_nans, isnan