MFH: r414729

www/node4: 4.4.1 -> 4.4.4

Update to the latest upstream v4.x maintenance release after the
recent openssl CVEs.

Release announcement with changelog is here:

https://nodejs.org/en/blog/release/v4.4.4/
https://nodejs.org/en/blog/vulnerability/openssl-may-2016/

PR: 209340
Submitted by: Bradley T. Hughes <bradleythughes@fastmail.fm> (maintainer)
Approved by: ports-secteam (junovitch)