servo: Merge #9840 - Update to rust-url 1.0 (from servo:url-1.0); r=asajeffrey

**Do not merge yet:** rust-url 1.0 is not published yet and may still get breaking changes. The goal of this PR for now is to demonstrate API usage.

Depends on:

* <s>https://github.com/servo/rust-url/pull/176</s>
* <s>https://github.com/alexcrichton/cookie-rs/pull/42</s>
* <s>https://github.com/hyperium/hyper/pull/740</s>
* https://github.com/cyderize/rust-websocket/pull/70
* https://github.com/jgraham/webdriver-rust/pull/28

Source-Repo: https://github.com/servo/servo
Source-Revision: 84ab7e9fe8f4a6528995eff3eb6e814cb724c364

servo/components/devtools/lib.rs

@@ -285,7 +285,7 @@ fn run_server(sender: Sender<DevtoolsControlMsg>,
             let tab = TabActor {
                 name: actors.new_name("tab"),
                 title: String::from(title),
-                url: url.serialize(),
+                url: url.into_string(),
                 console: console.name(),
                 inspector: inspector.name(),
                 timeline: timeline.name(),