Merge pull request #629 from ged-lab/doc-link

link to stdc++ docs
Fix type of threading arg in do-paritioning
Add assert for active_threads() to do-partition
Update ChangeLog
Update ChangeLog
Merge pull request #637 from ged-lab/fix/do-partition-threading

Fix type of threading arg in do-paritioning
Changed stdout output in scripts to stderr;
updated changelog