Update to current rust: use the new attributes syntax.

Builds with rust-lang/rust@e263ef1.

Author: Ms2ger

lib.rs

@@ -2,11 +2,12 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-#[crate_id = "github.com/mozilla-servo/rust-cssparser#cssparser:0.1"];
-#[feature(globs, macro_rules)];
-#[crate_type = "lib"];
-#[crate_type = "dylib"];
-#[crate_type = "rlib"];
+#![crate_id = "github.com/mozilla-servo/rust-cssparser#cssparser:0.1"]
+#![crate_type = "lib"]
+#![crate_type = "dylib"]
+#![crate_type = "rlib"]
+
+#![feature(globs, macro_rules)]
 
 extern crate encoding;  // https://github.com/lifthrasiir/rust-encoding