Replace link to Codex with link to new Make page. Fixes #25806 props siobhyb.

Built from https://develop.svn.wordpress.org/trunk@26354


git-svn-id: http://core.svn.wordpress.org/trunk@26255 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Twenty Fourteen: remove redundant gettext call, props defries. See #25946.
Built from https://develop.svn.wordpress.org/trunk@26355


git-svn-id: http://core.svn.wordpress.org/trunk@26256 1a063a9b-81f0-0310-95a4-ce76da25c4cd