Fix Clang build issue in NodeSet.hpp

Fix dependency fetch issue

Update README.md

Add files via upload

Update tutorials.md

Update tutorials.md

Update README.md

Fix dependency fetch

Merge pull request #12 from pusceddusimone/master

Update tutorials.md

Update tutorials.md

Merge pull request #1 from gcherchi/patch-1

Update tutorials.md

Update tutorials.md

Update tutorials.md