Cause travis to make docs.
Cause travis to make docs.

--HG--
extra : rebase_source : de73ed963c74508a08556badb2fa2eb8c82e7335

Shraddha512/rust-http,Shraddha512/rust-http,chris-morgan/rust-http,servo/rust-http,Shraddha512/rust-http,chris-morgan/rust-http,servo/rust-http,Shraddha512/rust-http,chris-morgan/rust-http,servo/rust-http,servo/rust-http,chris-morgan/rust-http,Shraddha512/rust-http