disco: Bump minidom dependency to 0.2.0, which fixes xml:lang parsing.

Cargo.toml

@@ -4,7 +4,7 @@ version = "0.1.0"
 authors = ["Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>"]
 
 [dependencies]
-minidom = "0.1.1"
+minidom = "0.2.0"
 jid = "0.2.0"
 base64 = "0.4.1"
 digest = "0.5.0"

src/disco.rs

@@ -60,8 +60,7 @@ pub fn parse_disco(root: &Element) -> Result<Disco, Error> {
                 return Err(Error::ParseError("Identity must have a non-empty 'type' attribute."))
             }
 
-            // TODO: this must check for the namespace of the attribute, but minidom doesn’t support that yet, see issue #2.
-            let xml_lang = child.attr("lang").unwrap_or("");
+            let xml_lang = child.attr("xml:lang").unwrap_or("");
             let name = child.attr("name")
                             .and_then(|name| name.parse().ok());
             identities.push(Identity {