KMeans unit test memory leak fix
fix data types in K_THREAD_PARAM struct
Merge pull request #1860 from mazumdarparijat/KMeans_notebook

KMeans unit test memory leak fix
Merge pull request #1861 from votjakovr/develop

Fix data types in K_THREAD_PARAM struct
python3 compile fix
A fix for malsar clustered logistic regression (closes #1360)
added a new string kernel StringSubsequenceKernel
reduced redundancy using function for plot
Merge pull request #1862 from lambday/develop

added a new string kernel SSK
move svmlight include next to libsvm
do not include kernel etc in svmlight
changed feature vectors from SGVector in ssk::compute
Merge pull request #1864 from lambday/develop

changed feature vectors from SGVector in ssk::compute
Merge pull request #1863 from mazumdarparijat/KMeans_notebook

minor change in KMeans notebook
Typo fixes and other minor changes in multiclass KNN notebook.