Modules that comprise sbt are not exposed in the documentation link

[randomname8]

Important api such as the io, are not exposed here http://www.scala-sbt.org/1.1.0/api/sbt/index.html. I would expect that the apidoc of all the modules is merged and published in that link. Alternatively they should be published somewhere, but browsing if it's not unified would be a hassle.