CMultilabelSOLabels class added
CMultilabelSOLabels class added
clone_tree method added
Merge pull request #2238 from abinashpanda/develop

Merging CStructuredOutput wrapper for MutliLabels.
Merge pull request #2249 from mazumdarparijat/CART

CTreeMachine::clone_tree() added.
added OpenCV build in .travis.yml
added OpenCV build in .travis.yml using package manager
workaround for OpenCV build in .travis.yml
added cvMat to SGMatrix conversion in shoun/lib/OpenCV/Integration.cpp
added CDenseFeatures to cvMat conversion in shoun/lib/OpenCV/Integration.cpp
workaround 2 fixed
added unit_test for opencv and cpp files