Auto merge of #2235 - felixc:zsh-completion, r=alexcrichton
authorbors <bors@rust-lang.org>
Sat, 19 Dec 2015 18:09:48 +0000 (18:09 +0000)
committerbors <bors@rust-lang.org>
Sat, 19 Dec 2015 18:09:48 +0000 (18:09 +0000)
Adds missing rustc, rustdoc, search, and uninstall subcommands.

Removes obsolete config-for-key and config-list subcommands that don't exist anymore.


Trivial merge