Auto merge of #3065 - mbrock:master, r=alexcrichton
authorbors <bors@rust-lang.org>
Thu, 1 Sep 2016 17:12:15 +0000 (10:12 -0700)
committerGitHub <noreply@github.com>
Thu, 1 Sep 2016 17:12:15 +0000 (10:12 -0700)
doc: mention feature toggling in "Specifying deps"

Basically copies info that was already on another page.


Trivial merge