Removing deprecated SGRefObject and SGDynamicRefObjectArray (closes #1853, #1764).
Minor fix of non-existing classes in interface files (found by coincidence).
Merge pull request #2581 from tklein23/undo_sgrefobject

Removing deprecated SGRefObject and SGDynamicRefObjectArray
Class name fix in SGObject impl.
Merge pull request #2595 from iglesias/develop

Class name fix in SGObject impl.
Update OpenCV_NN_vs_Shogun_NN.md
Removed deprecated register in Trie and Math swap
Remove outdated comment due to previous commit and all register hints in CMath header.
Cleaning up CFile
Merge pull request #2596 from abhinavagarwalla/develop

Cleaning Up CFile.
Merge pull request #2597 from iglesias/develop

Remove outdated comment due to previous commit and all register hints in...
update google scholar link
update readme
Merge pull request #2601 from karlnapf/develop

some doc updates
Delete tests/integration/tests symlink.

It is outdated since the hierarchy now is testsuite/pythonX-tests.
Merge pull request #2603 from iglesias/develop

Delete tests/integration/tests symlink.
Remove a bunch of math methods in SGVector.
fix half of issues in the KL notebook
Merge pull request #2605 from yorkerlin/develop

fix half of issues in the KL notebook
updated to latest wiki