Update hyper to 0.10 from 0.9

[nbigaouette]

Hyper 0.10 was released 20 days ago.

According to the release notes:

hyper will no longer provide OpenSSL support out of the box. The hyper::net::Openssl and related types are gone. The Client now uses an HttpConnector by default, which will error trying to access HTTPS URLs.

TLS support should be added in from other crates, such as hyper-openssl, or similar using different TLS implementations.

If using a client, take a look at reqwest.

If using a server, look at hyper-native-tls or hyper-openssl.

(2f48612c)

While the SSL update is interesting (that would certainly simplify compilation on OSX, see for example #1), it is suggested to change to reqwest.

Unfortunately, reqwest does not yet support proxy (see discussion here). Until it can be used with a proxy, we'll be stucked at hyper 0.9.