Bugfix for 6a3e03c / d99a904: return a 404 when the given node ID doesn't exist.
Bugfix for 6a3e03c / d99a904: return a 404 when the given node ID doesn't exist.

paasmaker/paasmaker,paasmaker/paasmaker,kaze/paasmaker,kaze/paasmaker,paasmaker/paasmaker,kaze/paasmaker,paasmaker/paasmaker,kaze/paasmaker,kaze/paasmaker,paasmaker/paasmaker