0.3.0

Breaking changes:

• Types are now divided into public modules. Only the most commonly used types are reexported from the crate root.
• Types that can be deserialized now use Serde (Deserialize) instead of rustc-serialize (RustcDecodable).
• etcd::Client::get has an additional boolean argument, strong_consistency.

Improvements:

• Clarified some details in the documentation.