Fix failure of KNN with cross-validation and memory leak on Features copy constructor.
Small changes in LMNN notebook to reduce running time.
Merge pull request #2501 from iglesias/notebook/lmnn

Small changes in LMNN notebook to reduce running time.
Update InferenceMethod.h

Fix wrong statement in documentation
Update InferenceMethod.h

another fix, overseen before
fixed the renaming issue
Merge pull request #2496 from iglesias/fix/knn_with_cv

Fix failure of KNN with cross-validation and memory leak on Features copy constructor.
Merge pull request #2504 from yorkerlin/develop

fixed the renaming issue
Set R modular to stable in README.md. Update Interfaces doc and NEWS.
Merge pull request #2507 from matthuska/r-modular-news

Set R modular to stable in README.md. Update Interfaces doc and NEWS.