Merge branch 'release-v0.9.1' into release

Author: sfackler

Cargo.toml

@@ -1,11 +1,11 @@
 [package]
 name = "postgres"
-version = "0.9.0"
+version = "0.9.1"
 authors = ["Steven Fackler <sfackler@gmail.com>"]
 license = "MIT"
 description = "A native PostgreSQL driver"
 repository = "https://github.com/sfackler/rust-postgres"
-documentation = "https://sfackler.github.io/rust-postgres/doc/v0.9.0/postgres"
+documentation = "https://sfackler.github.io/rust-postgres/doc/v0.9.1/postgres"
 readme = "README.md"
 keywords = ["database", "sql"]
 build = "build.rs"

README.md

@@ -1,15 +1,15 @@
 # Rust-Postgres
 A native PostgreSQL driver for Rust.
 
-Documentation is available at https://sfackler.github.io/rust-postgres/doc/v0.8.9/postgres
+Documentation is available at https://sfackler.github.io/rust-postgres/doc/v0.9.1/postgres
 
 [![Build Status](https://travis-ci.org/sfackler/rust-postgres.png?branch=master)](https://travis-ci.org/sfackler/rust-postgres) [![Latest Version](https://img.shields.io/crates/v/postgres.svg)](https://crates.io/crates/postgres)
 
 You can integrate Rust-Postgres into your project through the [releases on crates.io](https://crates.io/crates/postgres):
 ```toml
 # Cargo.toml
 [dependencies]
-postgres = "0.8"
+postgres = "0.9"
 ```
 
 ## Overview

src/lib.rs

@@ -42,7 +42,7 @@
 //!     }
 //! }
 //! ```
-#![doc(html_root_url="https://sfackler.github.io/rust-postgres/doc/v0.9.0")]
+#![doc(html_root_url="https://sfackler.github.io/rust-postgres/doc/v0.9.1")]
 #![warn(missing_docs)]
 
 extern crate bufstream;
@@ -467,9 +467,19 @@ pub enum SslMode {
     /// The connection will not use SSL.
     None,
     /// The connection will use SSL if the backend supports it.
-    Prefer(Box<NegotiateSsl>),
+    Prefer(Box<NegotiateSsl+std::marker::Sync+Send>),
     /// The connection must use SSL.
-    Require(Box<NegotiateSsl>),
+    Require(Box<NegotiateSsl+std::marker::Sync+Send>),
+}
+
+impl fmt::Debug for SslMode {
+    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
+        match *self {
+            SslMode::None => fmt.write_str("None"),
+            SslMode::Prefer(..) => fmt.write_str("Prefer"),
+            SslMode::Require(..) => fmt.write_str("Require"),
+        }
+    }
 }
 
 #[derive(Clone)]