Bump rustc-serialize and use std::path
This commit bumps the dependency on rustc-serialize to 0.3 and allows `Url::from_file_path` to work with `std::path::Path` as well (transitively working for `PathBuf` too).
Bump rustc-serialize and use std::path
This commit bumps the dependency on rustc-serialize to 0.3 and allows `Url::from_file_path` to work with `std::path::Path` as well (transitively working for `PathBuf` too).
