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It is outdated since the hierarchy now is testsuite/pythonX-tests.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
Merge pull request #2607 from karlnapf/develop

updated to latest wiki
Merge pull request #2604 from iglesias/cleanup_sgvector

Remove a bunch of math methods in SGVector.
some clean ups and data set changes
added sonar dataset
Merge pull request #2609 from karlnapf/develop

Develop
link authors and contributions to md-readme files, update md hash
Make doxygen include md files properly
Merge pull request #2610 from karlnapf/develop

Use AUTHORS.md and CONTRIBUTIONS.md from Doxygen
SGVector::set_const and ::get visible to SWIG again.
To fix failing notebooks.
Merge pull request #2612 from iglesias/develop

SGVector::set_const and ::get visible to SWIG again.
Update documentation in LMNN.cpp.

So that some comments about the implementation do not appear in Doxygen.