1. Updatedbitflags fromservo/servo#15724 and#133

1. Fix#119
2. Housekeeping, small efficiency improvement.

Asynchronous WebSockets!

1. First classtokio support!
2. Fully async websocket clients! (and SSL!)
3. Fully async websocket servers! (and SSL!)
4. Messages now get parsed into their semantic meaning! (Text types are given asString)
5. Native SSL on Windows & MacOS!
6. Simplified APIs
7. Docs and examples on how to use everything async!
8. Split entire crate intoasync andsync components and with feature flags.

1. Removerustc-serialize dependency
2. For connections which can be either SSL or not, useBox<Stream + Send> so it can be used with threads.

1. Fix.recv_message() bug.

1. Upgrade from a hyper request to a websocket connection
2. Upgrade all crate dependencies (openssl, hyper, etc.)
3. Make openssl an optional dependency
4. Use any Read/Write stream to make a websocket connection
5. Make clients with builder style API
6. Add / check protocols, extensions, headers, when upgrading connectin
7. Add / check protocols, extensions, headers, when building client
8. Docs for everything new
9. Much cleaner API overall