Bug fix in knn documentation.
Merge branch 'master' of https://github.com/rupnikj/qminer
Merge branch 'master' of https://github.com/rupnikj/qminer
Merge branch 'master' of https://github.com/rupnikj/qminer
Bug fix in KNN
Merge branch 'master' of https://github.com/rupnikj/qminer
Merge branch 'master' of https://github.com/rupnikj/qminer
Merge branch 'master' of https://github.com/rupnikj/qminer
Merge branch 'master' of github.com:bkazic/qminer