Make percent_decode() push to an existing vector.
Add {RelativeSchemeData,Url}::domain() methods.
Add {RelativeSchemeData,Url}::to_file_path() methods.
Add an Url::from_file_path() static method.
Upgrade to ef352faea84fa16616b773bd9aa5020d7c76bff0 2014-07-18
Backport to rustc 64b990d 2014-06-26