MFH: r460855 r463799 r465915

www/node8: Update 8.9.3 -> 8.9.4

https://nodejs.org/en/blog/release/v8.9.4/

While here, pet portlint:

• move ONLY_FOR_ARCHS
• remove USES_LDCONFIG (node.js doesn't install a .so)

Differential Revision: https://reviews.freebsd.org/D13775

www/node8: Update 8.9.4 -> 8.10.0

This release comes with a lot of big changes. There are updates to V8,
libuv, and ICU, a bugfix in npm, and support for building with OpenSSL
1.1.0.

https://nodejs.org/en/blog/release/v8.10.0/

www/node8: Update 8.10.0 -> 8.11.0

This is a security release addressing multiple vulnerabilities. Users
are recommended to upgrade as soon as possible.

https://nodejs.org/en/blog/vulnerability/march-2018-security-releases/
https://nodejs.org/en/blog/release/v8.11.0/

Security: 5a9bbb6e-32d3-11e8-a769-6daaba161086

Approved by: ports-secteam (riggs)