doc: sort repl alphabetically
doc: sort repl alphabetically

Reorders, with no contextual changes, the repl documentation with class
definitions at the top and alphabetically.

PR-URL: https://github.com/nodejs/node/pull/3859
Reviewed-By: Roman Klauke <d817af1499bb518fdf015b00b45f20c6b53728ce@gmail.com>
Reviewed-By: James M Snell <2d64a127ffc94dbe6295928a16bedf8b26814159@gmail.com>

dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node